I want to upgrade my TT for about $2K.

I think Doug's recommendation for a Spacedeck is right on. Go the the Audiophile Systems website and click on "Where To Buy", then click on "Nearly Perfect Sale", and scroll down to the Nottingham section. You will find that you can buy a Spacedeck/Ace-Space combo for $2399.20. The new Ace-Space is a nice step above the orignal Space arm, which was already worlds better than a Rega RB300. My advice is to snatch up that rig and sell your Rega. You won't be disappointed.

http://www.audiophilesystems.com/audiophile/nearlyperfect.htm

FWIW, I didn't like the sound of the Nottingham when I auditioned it. Too lightweight for me. Could have been the phono stage or cartridge or whatever, but I settled on a fully decked out used Linn LP-12. I have almost 4K into it now (but that includes new cartridge, T-Kable, Mana stand, etc), but you can get into a Linn for under 2K and upgrade.

Oracle Delphi IV or V would fit the bill, often overlooked but one heckuva turntable IMHO.

rega p5 and p7 are very nice turntables around that price point...sheu has several models, too, in that range factory direct from Germany

a SOTA refurbished table, several models, in that price range