I have a set of these:

From GearWrench about $50 for the 7pc
And these:

From Craftsman these were a gift, but run about $100 for the 7pc
I love them and use them all the time. I just squeaked my ai off with mine but there wasn't much room to turn the wrench but a click or two at a time.
They're good quality too. I've had them for years, put lots of torque on them and never had one fail. Gearwrench was the original and make the straight and swivel head. I think the Craftsman ones are the same exact wrenches, just labeled different, but don't quote me on that. The swivel heads are nice and have a lock to hold the angle but they are bulkier than the straight ones.