It's a good card, fast, quiet and cooler than stock.
Just a couple of points:
It' very long (a little over 12") make sure it'll fit the case.
It'll draw a fair bit of power, so either make sure your PSU is up to the job or post its exact make and model and we'll offer opinions on the subject.
The cooler dumps most of the heat produced into the case, so a good ventilation and a nice roomy enclosure would be beneficial.
I WANT ONE! But ca n't affird it...sob...
OK, that's those possble problems give a good seeing off, then.
Check the feeback, though, the 'Eggs people are not partcularly happy with that card.
If you're not into overclocking this might be a better solution: