In case you using windows 7 too i found a pretty decent tool for keep your drivers up-to-date.
I checked a few softwares like this and I have to say most of them are useless or contains malware / spyware.
Two of them I found good, one is drivermax which is in the race since a while and maybe (correct me if I'm wrong) the oldest from all and the other is slimdrivers.
Drivermax has a limit for free users (limited the amount of number of updates/day) but the other is totally free to use or you can by pro which updates all drivers automatically.
I did try both and ended up with slimdrivers.
Hope I helped you, keep drivers updated is important, however many people says if not broken don't fix it :-)