I should've been more clear - I want to find a place that I can visit (not online). JSho - Hopefully I'll be able to make it sometime in the next week.
Sir Taps - thanks for that suggestion, are they basically the same thing?
No - I don't have a credit card, I need it quite quickly and I would prefer to see it before I put the money down for it. I've never bought or worn knee-pads and this is a gift I'm getting for my wife.
Rob - Yeah, pretty similar, but volleyball ones tend to be a bit bulkier and less expensive. I have a couple of pairs very similar to the ones in the link below, they've lasted me for over 3 years and they're still as good as new. I wear them for both gi and no gi, they stay in place well and I chuck them in the washing machine along with the rest of my kit with no problems.