New Build. Under £300!!!

Hello,

Im hoping to build a decent PC for under £300.
This what I got so far:
http://www.ebuyer.com/product/148715
Intel Pentium Dual Core E5200 2.5GHz Socket 775 800FSB 2MB Cache Retail Boxed
£65.50

http://www.ebuyer.com/product/145707
MSI P45 Neo-F Socket 775 8 channel audio ATX Motherboard
£79.18

or

http://www.ebuyer.com/product/147238
Gigabyte GA-EG31M-S2 Socket 775 onboard VGA 7.1 channel audio mATX Motherboard
£42.99
^^ Is this a good mobo, what is mATX? will it matter for me?, if yes please suggest another around £50, that would work with the CPU.

http://www.ebuyer.com/product/119279
Crucial 2GB kit (2x1GB) DDR2 800MHz/PC2-6400 Ballistix Memory Non-ECC Unbuffered CL4 Lifetime Warranty
£23.68


http://www.ebuyer.com/product/124733
Western Digital WD2500AAKS Caviar SE 250GB 7200RPM SATAII/300 16MB Cache - OEM
£36.20

http://www.ebuyer.com/product/96712
Liteon 52x32x52x16 CD-RW/DVD Combo Drive Internal IDE Black Bare Drive - OEM
£9.99

Force3D X1650Pro 512MB DDR2 DVI VGA TV Out PCI-E Graphics Card
http://www.ebuyer.com/product/148220
£27.00

http://www.ebuyer.com/product/144483#
Compucase 6T10 Piano Black MATX E-SATA Case With Arctic Power 400W PSU 20+4pin 1x SATA
£37.18

is it all compatible?, also is the PSU/Case a decent one, cuz i dont want the PSU melting on me lol. or is 400w not enough!
What dya reckon to the gfx card?

Please give me comments and other options and cheaper deals (I live in UK tho...)

Thanks,
Dave

If you're chosing between those boards, you should probably go with the MSI. The gigabyte is a micro atx board, they are smaller and a little harder to work on. The MSI will be a little faster. You should really look at least getting into the E7300 cpu. The speed difference will be very noticeable.

For the combo drive, I would suggest this, or some other SATA drive. The prices are virtually identical these days and the smaller cable allows for better airflow.
http://www.newegg.com/Product/Prod [...] 6827106100

The case is a mini case, it will be hard to work with that compact space. This case is a mid tower and comes with a psu. It's not great, but it looks like you are going with a budget system, so it should do what you need.
http://www.newegg.com/Product/Prod [...] 6811156201