My PSU recently died on me, I was using a L375P-00(dell stock PSU). I purchased a Thermaltake TR2 W0070RUC 430W ATX12V V2.2 to replace it as a stopgap until I can buy a better PSU online. I am concerned that the new PSU may not be able to power the card adequately but I am not completely sure.
Specs for the PSU - 430W +3.3V@20A, +5V@24A, +12V1@14A, +12V2@15A, -12V@0.3A, +5VSB@2A
Video Card is a XFX ATI Radeon™ HD 5750 Single Slot
More aboutsupport 5750
Well, AMD reccommend a 450W PSU. But, your PSU will handle it with no hassle.