few questions on building a pc?

[matt_griff]

im have decided to go for this build,

Case - BitFenix Prodigy Mini-ITX Cube Case - Midnight Black £64.99
CPU - Intel Core i5-3570K 3.40GHz (Ivybridge) Socket LGA1155 Processor (77W) - Retail £184.99
PSU - Cooler Master Silent Pro Modular 500W '80 Plus Bronze' Power Supply £54.98
Ram - TeamGroup Xtreem LV 8GB (2x4GB) DDR3 PC3-17000C11 2133MHz Dual Channel Kit £35.99
DVD RW - Pioneer 24x Internal DVR-S19LBK DVD Rewriter including Labelflash - Retail £20.99
motherboard - Asus P8Z77-I Deluxe (Socket 1155/Intel Z77.DDR3/S-ATA 600/Mini ITX) £159.98
Monitor - Samsung S24B300HL 23.6" Widescreen LED Monitor £130
Keyboard - Logitech Wireless Keyboard K270 £20
Mouse - Logitech Anywhere Mouse MX £40
Printer - Canon PIXMA iP4950 £55
Microsoft Windows 7 Home Premium SP1 64-Bit - OEM £83.99
HDD - Samsung spinpoint F3 1TB - already have one.
speakers - already have some.

Total - £850.91

now is there anything you would change before i make the order on monday?

i wanted to know if at a later date i wanted to play games could i just add a GPU?
will this system be totally silent, someone mentioned the standard heatsink will be the noisiest thing, could you recommend me a silent one that will fit?
also would the fans provided with the case be enough to cool the system down and would they be silent, if not could you recommend?

what else do i need to build this computer, i built one for a friend around 2 years back and i think the only thing i have missing from the above is some thermal paste?

can you see anything else missing that i need?

am i limiting myself or paying more for a smaller computer, if i had a standard size case would i be better off or not?

and last question lol, is it worth me waiting for windows 8?

 

[matt_griff]

anyone?

i dont want to mistake spending this sort of money!

 

[tjlld]

Sorry I don't know enough about mini-ITX to comment about some things.
What about this motherboard?
Yes mini-ITX is more expensive as motherboard costs around £40 more and case around £20 more.
Cheaper RAM

 

[tjlld]

Removed

 

[tjlld]

i wanted to know if at a later date i wanted to play games could i just add a GPU?
what else do i need to build this computer, i built one for a friend around 2 years back and i think the only thing i have missing from the above is some thermal paste?
and last question lol, is it worth me waiting for windows 8?

Yes you can just add a GPU later.
The retail version comes with paste pre installed, as do most heatsinks.
I'm not really sure, you can look up the advantages over W7, nothing too major like 32bit -> 64bit with W7, but it seems that upgrade will only cost £25.
You could always use W8 preview if you don't mind the hassle of reinstalling later and decide when its released.