Will UDMA133 HD work if UDMA100 did ?

My computer's currently got a 200GB UDMA100 hard drive in it currently,
which works fine. I was planning to get another hard drive and wasn't sure
if a UDMA133 would work or not. I couldn't find out what model motherboard
I've got (the computer's a Compaq 6000 series), but I was wondering if in
general a UDMA133 drive will be ok if a UDMA100 was? Since UDMA133 seem to
be just as cheap I figured I'd get one of them if it'll work ok.