Sry for the double post but couldn't find how to edit.
Never go for the Zebronics one not at all overclockable.
I had a 7300GT b'fore and I coudn't overclock it at all.
XFX will be fine tho.
Hmm I have a MSI Factory Overclocked 8600GTS in SLI and it runs all games on max at 1024x768 including Forza Motorsport !!
And yes Bioshock runs like a crisp on it too :-D
Nice my first post in an Indian Community site :-p