Not too bad. Top-o-the-line mobo and CPU, decent case but dodgy PSU, good RAM, hard drive, and DVD... but why a GFX card that's several generations old???
If you like the case, buy a different PSU to go in it, or just choose a case w/o a PSU and get a PSU. Go with Antec, Fortron, Hiper.
As for a decent graphics card, check out the BFG Tech BFGR79256GSOCE GeForce 7900GS. It's $189.99, but has a $30 MIR (so it's actually cheaper than the card you linked to), and comes overclocked. BFG also has a lifetime warranty on their cards.