Hi As I sold my Advent from PC world (my first ever desktop and the last computer I ever bought from a high street vendor) I need a brand new PC. I have little practical knowledge, but I've spent most of my free time the last 2-3 months browsing hardware reviews and a mate of mine already assembled a few PCs using components from Scan so I should be fine with his help. The problems with the old machine were: a) slow b) extremely loud c) no dust filters, d) crappy case and PSU I upgraded it with a 4670 and 2 GB of Ram from a GF 7300 LE and 1GB, but it only resolved the first issue. Couldn't go higher than 4670 since the PSU would burn most likely. Basicaly I want to build a computer which would avoid all of the above issues. I sold the old 19 inch LG monitor and I'll be using a full HD 32 inch tv as a monitor. I got some of the items already: 1) i7 920 2) Gigabyte GA-X58A UD3R rev 2 motherboard 3) Sapphire 4890 Already decided on these components: 1) 3x2GB Corsair XMS 1600 Mhz 2) Gelid Tranquilo 3) Win 7 Home Premium Retail as my OS (will use a student upgrade program to get Professional straight away) 4) 1TB Samsung F3 or an equivalent WD model Not sure about: 1) case; if new then Xigmatek Utgard for functionality, it also fits my budget better; or a Fractal Design R2 because it looks better and is quiet, as a downside it runs hotter and is more expensive; trying to find a bargain on a Cosmos case on ebay for a week because I am in love with that thing, but can not afford a new. I don't think I can get one below 100 pounds so I'll probably have to settle for one of the first two. Some of the Silverstone cases, the Acts 840, and the Corsair 700/800 ones are extremely sexy as well, but even used they sell beyond my budget. Besides because they are good and expensive it sometimes hard to even find an auction for one of those, nvm winning it. I'm also not sure whether I will need any extra fans for any of those cases. Are the stock fans good enough? Usually cases come with 4-5 fan holes, but only 2-3 fans. Does instaling extra fans have a huge effect on cooling and noise levels? On the one hand more fans would mean more noise, but if the amount of air each fan has to move is lower then I guess you can keep them at low RPM all the time and net effect is noise reduction. Not sure how it works in real life scenarios. 2) PSU The components will probably draw around 450-500 W in total. I was looking at 650-700 W power supplies. If I upgrade the GPU then it most likely will be to a single 6850 or something like that once they are out. Guessing power consumption of non existent future hardware is a bit futile, but I'd expect that the power consumption will not drasticaly increase unless ATI does a Thermi. Another thing that confuses me is capacitor ageing. Not sure I should trust the PSU calculators of manufacturers as they obviously have a motive to upsell a befier unit. If I had the money I'd probably buy a Corsair TX 750 or 850. A modular unit would have been nice just to save on the clutter, but I don't like window side panels so aesthetics are a secondary concern. As long as cables don't obstruct the airflow too much then it doesn't matter. The list of components is 800 pounds and I've got a 900 budget, 950 at a huge stretch. So pretty much 100-150 for Case and PSU :-( I know I should have probably gone for an i5 instead and use the extra budget for case/PSU, but the CPU/mobo was an impulse buy and I already have it. I was thinking of the OCZ ModXstream or StelathXstream2 700 W units since they received some really good reviews from sites that check PSUs properly using stress tests. I'm not sure whether I am allowed to post links. Heard that OCZ is having financial trouble recently though, so I am concerned regarding warranty. From Scan the only half decent choice is a Modu 82+ Enermax 620 W unit which sells for 78 (on Clearance sale atm). It is still a bit too much and the wattage is a bit low I think. Then again all reviews stress that Enermax, Corsair and a few other PSUs are usualy underrated in order to avoid capacitor ageing impact. Also the PSU seems to be silent up to 90 % loads so running it at 70-80 % most of the time should be ok. I would deffinately buy a second hand or refurbished item if it saved me some money. Corsair do 7 year warranties anyway so I don't have a problem buying a 1-2 year old PSU. Sorry for the wall of text.