New graphics card

[Link]

Time to go looking for a new graphics card. My Dell Dimension 4600 needs a new card because the old card leaked crap all over the inside of the case.  If there is anything slightly better than a Nvidia  5200 fx then please let me know. 

Specs:
Pentium 4 CPU @ 2.80 GHz
512 MB of ram
Can be pci or agp compatible

Ive found a couple but I need to know if these will be any good.
http://www.amazon.com/SPARKLE-SF8855DT-GeForce-S-Video-Graphics/dp/B000JLPL7M/ref=dp_cp_ob_e_title_0?ie=UTF8&qid=1269731346&sr=8-47

http://www.amazon.com/Jaton-GEFORCE-FX5600XT-DDR-3DFORCEFX-5600XT-256/dp/B0000YTXPY/ref=sr_1_47?ie=UTF8&s=electronics&qid=1269731346&sr=8-47

[mod]Please do not double-post. The edit button is there for a reason.
-Red[/mod]

[Link]

XD 400w requirement. Thats a good one.  This one only has a 250w output.  The thing is I just got a new computer so getting another one is out of the question plus there's a bit of sentimental value behind this one.  I knew from the start that I wouldn't be getting a uber powerful card but I was hoping I could find something that would be any bit better and still be compatible.   If I cant upgrade then Ill just get a replacement.