PSU and case for an athlon

Okay.. I'm gettin` a new PC:
athlon 2000+, epox nForce2,radeon 9500 pro..
I was wondering if 300W will be enough.. I saw this Compucase super midi towers with 300W, which were most afordable I could get, but if it's not good for the system, what is? Please help me..

<font color=red> THIS VOILENCE IN THE NAME OF LOVE </font color=red>

Which case? According to <A HREF="http://www.compucasecorp.com/case.htm" target="_new">this</A> site, there are four super midi tower cases. They <i>look</i> OK.

They all seem to have 1.0mm thick steel in them (as opposed to 0.8mm that most cheap ones have). They've got a couple of point for cooling fans, and there are a few <A HREF="http://www.google.com/search?hl=en&ie=UTF-8&oe=UTF-8&q=compucase+review&btnG=Google+Search" target="_new">reviews</A> on the web (based on the black version of the 6919 series) that say that it's similar in design to Antec cases. The few pictures that I saw didn't go into detail but it looks like it'd be OK to work on.

The power supply may be a bit ordinary though, the HEC-300AR-T power supply (spec sheet <A HREF="http://www.compucasecorp.com/power/hec-ar-t_1.htm" target="_new">here</A> ) shown in the reviews I skimmed through seemed to only have a combined output rating of 180Watts. If you could get this case on it's own and buy your own PSU, you'd be on to something good IMO.