They are called squat briefs. http://www.flexcart.com/members/eliteft ... PD&pid=720
I am hoping they help stabilize my hip.
You may have read this, it's quite an old article, but still good - Cressey, Healing the Hips. http://www.elitefts.com/documents/healing_the_hips.htm
It talks about anterior hip pain (is this what you have?) and also mentions squat briefs. It's quite a short article.
I think the briefs are a good thing to have. They should allow you to train pain free. I think the serious lifter needs stuff like that. The amount of times i've went into the gym with a flared up shoulder or knee mounts up to a lot of random days off. Deep Heat (anti inflammatory cream) would be applied - loads of it. if the pain doesn't go away then the burning and smell of menthol make you forget about it anyway. Seriously though, it's a 'symptom based' approach that allows me to keep training pain free. Briefs should provide a similar advantage. As time went on, I was able to find ways to stop the flaring up in the first place, so I hardly ever, if at all, need to use that cream now.
So in short - I think they're worth buying. But just be aware that 'something' must be going on to make your hip sore in the first place. Whilst the briefs will help in the short term, don't let them make you lose sight of the long term...
One sesssion with a good physio (physical therapist) would be enough to figure out what's tight and what's weak... It's all you need to know, it's just hard to figure out on your own. And sometimes, it's even harder to find a good physio, in my experience anyway..