i've got the yeong yang a102 (i'm actually gonna have 2 of them soon actually).
you might wanna invest the extra $20 or so, for the 200watt version with the p4 complaint power supply. 200 watts is fine for an athlon. i've seen a p4 willy 1.8 use a 135 watt supply fine, it shoudl be ok. the case only has a single 5.25 bay, and 2 3.5 bays (one for floppy) so you wont be using tons of stuff anyways..
the case is very high quality, and uses an sfx power supply. the only bad thing is that it cant use sfx power supplies that have an 80mm fan because there isnt space for the fan that jutts out (this is how i got stuck with a spare 200 watt sfx). the sfx that comes with the 200watt version is kinda noisy as it has a high rpm 15mm 60mm fan in it.
its a good case though, looks very nice.