Yeah I was going to recommend fish oil. You could also look into FlaxSeed oil as well... Both are cheaper that glucosamine... Fish oil you can probably get a big tub of tablets for pretty cheap...

Glucosamine is getting cheaper... It was like "the in thing" for a while there when they first started advertising it was good for joints, and it was quite expensive compared to fish oils. But the price has come down now..

You gotta be very careful with your joints! I have one, and sometimes two, very bad wrists that play up all the time... I can't even shuffle paper around at work for a few hours without them getting sore...

Maybe go to a physio and see if they can give you advice...