You mention one thing that concerns me about your pursuing the TC1000: Graphics work.
The TC1000 is not pressure sensitive. That is an important feature for graphic artists.
The processor on the TC1000 is slow, but maxing out the memory can help.
Given your budget and graphic needs, I would either look at the TC1100 Celeron - used or look at the Motion M1200 - Used.
If the pressure sensitivity is not big deal, take a look at this for sale thread: