psu and case: this or that?

[shoemouth]

It looks like this is the system I'm putting together:

MB= Either Chaintech VNF4 or Abit AN8 Ultra
1 gig (2x512) of Corsair xms
ge force 6600GT (chaintech se6600g)
AMD athlon 64 3200+ venice
wd 120gig hd

Question:
1. Is the XION Black XION II XON-103 SECC Steel ATX Mid Tower Computer Case 450W Power Supply - Retail for $44.99 on newegg a good case? Seems like a good price.
2. Forgoing the psu in the case mentioned I can't decide between these two psu. I prefer the first since it is cheaper but I am unsure if it is strong enough for my system.
A. OCZ ModStream OCZ45012U ATX/BTX/PCI Express/SATA 450W Power Supply - Retail for $69 after rebate on newegg
B. ENERMAX Whisper II EG565P-VE FMA(24P) ATX12V 535W Power Supply - Retail for $89 on newegg.

The ocz got great reviews and is cheaper, will it be strong enough for my gaming needs (novice gamer)? It that case good enough for the money?

Any feedback much appreciated concerning my build. If all goes well I'll be able to build my system for between $550-$600 (after rebates).

Shoe Mouth

 

[Rugger]

Link your case. I think the Super-Flower SF-201T can't be beat for $75. High quality, quiet, great airflow, aluminum, looks great....

The OCZ is a really good PSU, but the Enermax is a lot more likely to be usable in your next build. Worth $20 in my books.