I got an Asus Transformer t100 I think for 500, it's borderline on some programs, but does most of what I want and the size is perfect. No idea if it will run elements, but it does run full windows with no major issues.
http://www.asus.com/au/Notebooks_Ultrabooks/ASUS_Transformer_Book_T100TA/
Looks like they are 424 at dicks, didn't look anywhere else.
http://www.dicksmith.com.au/computers-tablets/asus-10-1-transformer-book-t100ta-dk003h-dsau-xc9233
This may be what I'm after. Thanks! Cursory googling shows someone running CS5 on it (albeit with slowdown), so with any luck I can track one down in the next couple days.