I don't have alot of room so want to replace my laptop, stereo, TV, DVD player with a PC and LCD TV

I also fancy building it myself

I've no experience but it can't be that hard???

What do I need?

Case
PSU
Motherboard + Processor
Graphics card
Sound card
Hard drive
TV tuner
WLAN card
DVD/RW drive
DVD drive
Cooling fan
Cordless keyboard/mouse

Anything else? Any good places to buy the parts?

Any particulary reccommended parts, don't need state of the art.

Cheers