With the Surface Pro 3 out, you can probably find some people who like to be on the (b)leading edge willing to part with their Surface Pro or Surface Pro 2 tablets. A quick search of eBay shows a functioning 64GB Surface Pro (1) for $330. It's lacking a charger, which will set you back $20 on Amazon, so we're talking $350 for a 1920 x 1080 graphics tablet.
If you prefer new kit, Amazon has a listing for a 19" 1440 x 900 Turcom Interactive Pen Display Graphics Touch Screen Monitor that reports at 220 rps. (It also does 2K levels of pressure, but that's not germane here.) This costs $500 and ships free with Prime.
Hope that helps, one newbie to another!
