I'll hit 8000 miles tomorrow.
Did the 7500 mile oil change a week ago, and put a new chain on a few days before. I just picked up a "Parts Unlimited" plain jane 530 chain from Land's Cycles on I-10 East in Houston. It's a service place and they have a lot of used motorcycles (including a nice looking CB750K). I called around and couldn't find anyone else with a chain in stock! (Well, I didn't call a lot of places, but I called a couple of others.) It came with 104 links but he cut two out for no charge while I waited.
Got an E-Z Mirror bar end in the mail today from NFieldGear. I just ordered one, and I'll use it to see what's in my lane behind me. I'll keep both handlebar mirrors to see what's coming up beside me.