Have you tried Pilates? Most physio's have either group classes of 6 or less and have Pilates Reformer machines as well. So they can guide you to do the excerise the right way without agrivating your dodgy hip.
The reformer machines are great, as you can go on those anytime, alot of physio's will have one you can use, they will give you a demo, show you the excerises and then you can go back and pay as you use. Or if you like it, you could scour around Ebay for one.