Gaming PC Build - Need Opinions and Help!

[Frustration96]

I want to build a better PC than my current laptop ([url]http://www.amazon.co.uk/Toshiba-Satellite-L450-136-15-6-Inch-Notebook/dp/B002Q8HMFK[/url])

So far I have 2 builds that I have chosen myself;
Processor=
[url=http://www.overclockers.co.uk/showproduct.php?prodid=CP-303-AM] AMD Phenom II X4 Quad Core 850 "95W Edition" 3.30GHz (Socket AM3) [/url] = £90
OR
[url=http://www.overclockers.co.uk/showproduct.php?prodid=CP-248-AM&groupid=701&catid=6&subcat=] AMD Athlon II X2 Dual Core 250 3.00GHz (Socket AM3) [/url] = £42
Motherboard=
[url=http://www.overclockers.co.uk/showproduct.php?prodid=MB-331-GI] Gigabyte GA-M68MT-S2 (AM3) Motherboard [/url] = £40
OR
[url=http://www.overclockers.co.uk/showproduct.php?prodid=MB-028-AK&groupid=701&catid=1903&subcat=] ASRock N68C-S UCC GeForce 7025 (Socket AM3/AM2+) DDR2/DDR3 microATX Motherboard [90-MXGES0-A0UAYZ] [/url] = £31
Hard Drive=
[url=http://www.overclockers.co.uk/showproduct.php?prodid=HD-082-SA] Samsung SpinPoint F3 1TB SATA-II 32MB Cache [/url] = £45
Video Card=
[url=http://www.overclockers.co.uk/showproduct.php?prodid=GX-267-SP] Sapphire ATI Radeon HD 6570 Ultimate Edition 1024MB GDDR3 PCI-Express SILENT Graphics Card [/url] = £65
OR
[url=http://www.overclockers.co.uk/showproduct.php?prodid=GX-140-GW&groupid=701&catid=1914&subcat=] Gainward GeForce 8400GS "SILENT" 512MB DDR2 PCI-Express Graphics Card [/url] = £26
Sound Card=
[url=http://www.overclockers.co.uk/showproduct.php?prodid=SC-004-OK&groupid=701&catid=11&subcat=] OcUK Value 5.1 PCI Sound Card [Sc012] [/url] = £9
RAM=
[url=http://www.overclockers.co.uk/showproduct.php?prodid=MY-063-GS] G.Skill RipJawsX 4GB (2x2GB) DDR3 PC3-17000C9 2133MHz Dual Channel Kit [/url] = £50
Optical Drives=
[url=http://www.overclockers.co.uk/showproduct.php?prodid=CD-099-SA] Samsung SH-S222AB/BEBE 22x DVD±RW SATA ReWriter (Black) [/url] = £17
Case=
[url=http://www.overclockers.co.uk/showproduct.php?prodid=CA-008-BX] BitFenix Shinobi Gaming Case - Black [/url] = £50
Power Supply=
[url= http://www.overclockers.co.uk/showproduct.php?prodid=CA-027-OP&groupid=701&catid=123&subcat=] OcUK Swift 650W Silent Power Supply [/url] = £24

TOTAL (most expencive) = £390

TOTAL (cheapest) = 294

I dont THINK I am missing any parts, though I am very new so I might be :P

My budget is £300 though I'm sure I can squeeze £350

I cna get a moniter for £25-30 and a keyboard for really cheap too, I already have a mouse

If you have any advise/suggestions please tell me, I wantto get the best PC for the money I have :)

If you need any more info please tell me

ALSO, how can I check all these parts are compatible? Is there a website or something?

Thanks in advance :)

[halo_224]

Well, you've gone pretty low on some parts, and keep in mind this means it'll be harder to play games, not only that but the quality of the PSU could kill your computer. Although, I don't mean like you'll plug it in and it'll just fry your system.

As for the RAM, I would go with: [url]http://www.newegg.com/Product/Product.aspx?Item=N82E16820233195&cm_re=CORSAIR_Vengeance_4GB_%282_x_2GB%29_240-Pin_DDR3_SDRAM-_-20-233-195-_-Product[/url]

It'll save you about 5 euros and as for the sound card, it's not really needed unless you've got some expensive hardware to use it with. Otherwise it's just a waste of 9 euros. But other than that, I suppose you're good to go.

What ever you do, do not downgrade the CPU. The CPU is the one thing that can completely downgrade your PC.