[akshayt]

firstly for that range you won't get a decent card

Secondly whatever you do make sure memory interface is not less than 128bit,if possible 256bit
for all cards (including specified blw).If you find a below mentioned card without 128bit memory interface or higher then don't take it.

Consider
128mb/256mb FX 5200 or ultra(if existing now or if existed in a particular model)
128mb/256mb FX 5700le or better versions
128mb/256mb geforce 6200
128mb/256mb radeon 9600se
128mb/256mb geforce fx 5600 or ultra

FX series is crap and so is 9600se is useless.
also,is radeon 9550 dx 9.

take dx 9 or better cards
preferably dx 9c
fx don
t have full suport for dx 9 nah?