It is chronic and progressive, but a combination of drugs can generally keep it under control for many years. It is no longer the fast trip to a wheelchair and nursing home it was 75 years ago.
People are generally controlled on a combination of anti inflammatory medicines and drugs targeted toward cooling off the immune system. Some lucky people can just take NSAIDS like ibuprofen or naproxen and do quite well. Others need a whole pharmacy to send them into remissions. Some of the drugs have annoying side effects, though, and that's where the nuisance part comes in.
The diagnosis doesn't signal the end of your useful life, though. Just be prepared to pay attention to what's happening to your body and be vigilant about following whatever drug regimen you end up on.
There are message boards and support groups all over the net. If you live in a city, contact the Arthritis Foundation for real world support groups. Some of the online groups are at
http://www.arthritis.org and
http://www.healthtalk.com/rheumatoidarthritis/index.cfm One I used to post on a long time ago is at
http://arthritis.about.com/mpboards.htm. It's a protected forum, you do have to register to use it. A Google of "rheumatoid arthritis bulletin boards" will also be helpful.
Above all, keep positive thoughts until a diagnosis is nailed down and you know just what it is you have. It's not just rheumatoid arthritis, there's a whole alphabet soup of related diseases out there, and you may find out you don't have any of them.
Good luck!