I use a Bosch Bulldog Xtreme or a DeWalt corded rotodrill. Either will swing up to a 1 1/8" bit, which I believe is the largest that can be put into a SDS/TE-C chucked drill. Id say the bits are way more important than the drill, I use the Hilti X-head bits, they are so much faster and smoother than standard bits. Even if you are just drilling a floor for rack mounts, get good bits: it's a supreme pita to get a broken bit out of a hole.
for putting in floor anchors, any standard 18V hammerdrill ought to work. I have done it with my B&D Firestorm and cheap bits, it's slow going but works.
Jack
