help/thoughts on ssf

ok ive now got some money and time to build a sff system, which ive wanted for a while. its gonna be used for media things, playing films, dvds, music. so high spec isnt essential. heres what i have so far, what are peoples thoughts or recommendations?

Asus A7V400-MX Micro ATX (need other ideas upto £50ish)
AMD XP1900
512 DDR
Asus ATI Radeon 9200SE/TD 128MB
Antec Minuet Piano case


edit: only prefrance is a flatish case and amd.

Shuttle SN45G v3
AMD XP2500
512 DDR400
NVIDIA 6200 card

already have the xp1900 chiop and just aquired some ram so just need case, mobo and gfx card for under 130, and still not too keen on the shuttle cube like cases