It is a great deal. I would test the card out first though. Plug it in, update drivers and all that and just run a benchmark - I normally just let Unigine Heaven run in stress mode for about half an hour and if its still going, the card is just fine.
As for the PSU, that's a bit harder to test, but that psu has gotten good reviews from what I have briefly seen, so you should be ok with it too. Once again, I would suggest you plug everything in with that PSU and see if the system works with that benchmark for a while.