Low profile graphics cards



I have a Dell C521 with a low profile case. I ordered it with a
Radeon 128MB X1300 that needs to be updated for Flight Simulator. II don't want spend a fortune but I I want a low profile card that wwill show some improvment. Any ideas or suggestions I'm dumb as dirt about graphics cards.
I would suggest the 9600GT LP LP it is low power No external plug low profile. I just got 2 at best buy on clearance for 70 bucks each and just so you don't worry about power I plugged them into Dell optiplex 760 low profiles with 91watt rated supplies work just fine. I know I will get hell for that around here but dell always way under rate their power supplies so the dumb a general public does not blow up their PC's :)