Here are the results
As you can see all of the drivers run pretty close to each other and if you plan on sticking with the official dirvers 7.96 you probably arn't missing much but I find the Omegas have a few more options the regular drivers don't have and thus makes them worth installing pluse they doo seem to give a little more performace out of the card although not much. I'm my personal Opinion I reccomend the Omegas. Wich you can get atwww.omegacorner.com
You can get the DHmod tool at (Mods ATI's Catalyst Drivers www.ATI.com
The officail drivers you can get from Alienware DUH!
So In conclusion if you have the newest drivers form alineware and are a littel leary of third part drivers you arn't missing much but If you want a littel extra functionality and a sever so slight preformance boost go with the Omegas! The DHmod tool works well but the omegas are about the same and come in a nice uninstallable package!
Side note if you have higher specs than I do you can expect higher numbers in 3Dmark03 or if you over clock all drivers where tested unoverclocked!