LPGear is another good one. They also carry non-OEM replacement parts that are quite good. Some say their Vivid Line outperforms the uber expensive shibata styli for a whole lot less.
There's also "that auction place". Love it or hate it, I've gotten some good stuff. Main thing is to go with established sellers with good feedback. Last big score for me was a brand new OEM 625E stylus for my Pickering XV15 at what I thought was a very reasonable price.
Belts are pretty much a crapshoot - once again, an established dealer is your best friend there, and even then they can play fast and loose with sizing, using one belt for several tables with slightly different requirements. Too loose, you got speed issues, too tight, you can actuall stress the bearings or get rumble. Be sure to carefully measure any belts you do get and compare them to spec. Also, take several passes with a clean damp microfiber cloth to remove any glaze that can happen in storage. New belts slip too if you don't prep them right.
Or do what I did, and get a direct drive. ;-}
Here's a good read on some of the particulars for your table. Picky lil bugger, but worth the effort.
PS ... luck finding an OEM belt. You'll probably find the Holy Grail first. Luck with that, eh.
Turntables have I/O?
I clean RCAs by just putting a bit of D5 on a mating plug and spinning it some to spread the cleaner and break the crust. A drop of DeOxit gold works wonders for improving the connections. Last step is to crimp the ground tabs as needed for a tight fit. I also insert just the pin and check for wobble that would be a sign of having to get inside and tighten that up. Not a problem if you're one who pulls them carefully straight out.