I'm looking to buy a PCI-E graphics card with dual DVI outputs that can comfortably run two TFT monitors each running at 1680x1050. I'm not a gamer but I do quite a lot of Photoshopping, DVD watching and just general web browsing, so I'm hoping that I can get a half decent card for under £100: the cheaper the better, but I'm prepared to pay what I need to if it's worth it. If I can get one for around £50 I'll be very happy. Any suggestions would be appreciated Edit: FWIW, my motherboard apparently has a "PCI-E X16 slot" - not sure if this matters but I thought I'd mention it just in case.
I would advice a Nvidia GTX260; it will serve you faithfully and you'll save not having to do an upgrade for several years. I know it's some 120GBP, but it's an investment. Otherwise you can opt for 250 series for some 80 GBP or ati 4870 (100 GBP) or 4890 (130GBP, noisy but more powerful than Nvidia 260). Best buy is ATI 4870 for 100GBP; however you better go quick, because Apple bought 2 months of 4870 and 4850 production and when they sell out you'll have to go towards 130 GBP.
Depending on what sort of Photoshopping your doing. You could either get something really cheap, like a 9500GT or 9600GT or something even cheaper. However, if your using GPGPU stuff in photoshop and doing seriously large amounts of processing, then probably the best card for £100 would be a GTX260 (if you can find one for that price, I think Aria still have some), or if not, a GTS250.
If you do only Photoshop on the GPU, you wouldn't have to dig that far in your wallet. But in contrast to above I can recommend the ATi Radeon HD57x0. Does its job at GPGPU, doesn't suck too much power, is cheap and able to pull out decent framerates up to 1680x1050/1920x1200, depending on the game.
Get a 4870 card and you will be happy for quite a while. If you can pick it up used you can probably be in the 50 E range. For 50-75 E you can go new if you shop in the right country.
i dont think photoshop cs4 is ati/nvidia specific for gpu acceleration so a 4850 or a 4770 from the ati side and a 9800gt or a gts250 from the nvidia side. Check to see if you have room in your case for a fairly long dual slot card. If you get more for the price then take it