Do you mean one
touchscreen to couple with your main monitor?
If you decide not to go for the classic small 8" way (800x600), than I'd guess you also have some kind of graphics knowledge required to make your own profiles in bigger resolutions...
If this is the case, the bigger the better, $$$ cash allowing ;-)
Did you take a look at those awesome DCS BlackShark profiles made by DDastardly ?
http://www.touch-buddy.com/forums/lo...catid=4&id=106