Building a small(ish), low spec PC for my girlfriend who doesn't need to do much apart from the basics and play a really low spec mmorpg (Dragon Oath). Just wondering if the components below all look okay and if they'll go together. Trying to keep it under £300 (at the moment it's £280 inc. delivery). Case: INWIN Z637, Black, micro-ATX Case w/o psu Motherboard: Gigabyte GA-MA74GMT-S2, AMD 740G, AM3, PCI-E (x16), DDR3 1333MHz, SATA 3Gbps, SATA RAID, Micro ATX CPU: AMD Athlon II X2 250, Regor Core, S AM3, 3.0GHz, 512KB x 2 Cache, FSB/HT 2000MHz, 65W, Retail Memory: 2GB Corsair Value Select, DDR3 PC3-10600 (1333) Non-ECC Unbuffered, CAS 9-9-9-24 GPU: 512MB Asus HD 5450 Silent, PCI-E 2.1 (x16), 800MHz GDDR2, GPU 650MHz, 80 Cores, D-Sub/ DVI-I/ HDMI HDD: 500 GB Seagate ST3500418AS Barracuda 7200.12, SATA 3Gb/s, 7200rpm, 16MB Cache, 9.5 ms, NCQ DVDRW: Samsung SH-S223C/BEBE 22x DVD±R, 12x DVD±R, DVD+RW x8/-RW x6, SATA, Black, OEM PSU: 450W Powercool Modular PSU 80+ Dual 12V V2.2 High Efficiency Wireless PCI: Newlink NLWL-PCI02 Wireless PCI Card 11g 54 mps Thanks!
Maybe a slightly better case? The Antec VSK 2000 or Xigmatek Asguard use 120mm fans compared to the 80/90mm fans in the inwin and would better for cooling a passive card and exhausting the air from the stock AMD cooler.
I would rethink the power supply, even if the system won't use much power at all. The Corsair CX400 should be quite close in terms of price and will be light years ahead in quality. You could also get the Silverstone ST40F-ES or the Silverpower SP-400P2C.
I have a similar card to this in my other half's PC (which is admittedly an i5 750 with 4gb ram) and it plays WoW comfortably on medium settings, so I'd say that part at least would be ok. However, since you did come in £20 under budget it can't hurt to go the next bump up on the gfx if you can as you never know what MMORPG she might move to in the not too distant future.
If it was me i would go for an Asrock N68C-S UCC and a Single Core X140. On this board they un-lock to dual core and then run at 3.2ghz without any extra cooling. The money you would save could then go on a better graphics card. If you can squeeze in a 5670 512mb you would see a massive performance boost.