I think Compuware products work pretty good. For testing web sites, either QARun or TestPartner work fine. TestPartner seems to be stronger for www testing, although I think it is kind of a new product. I don't know how much it costs... a few bucks I guess.
[This message has been edited by Vince McMahon (edited 04-09-2001).]
Compuware are good and have the biggest range of test tools of all the vendors except maybe Rational.
Prices? I am from the UK the price depends usually on how much you are buying and if you are buying complementing products. But as a rough estimate except to pay c$/£4000 for QACenter which is reasonable considering what you get in the package. See their site for the QACenter package details.