I've just taken a quick look at SDL (By quick I mean literally 1 hour) And I can already draw a box and make it move. I think this would be the best way to do it. This, SMFL or XNA. I have books on XNA, C# and C++ so which ever one we go for I'm prepared. I've also got a £500 gift voucher for Amazon (Won it in a programming competition for under 18's) so If we need any books I can get one or two. Still gotta order that new monitor though.
no problem I worked with XNA too for some time but in the end it had to much limitations and when i saw the "compiling" which only meant to be playable when installing XNA Framework etc i just gave it up.
I'm probably gonna sound really stupid saying this, but if we use a language that means toonstruck 2 could be played in ScummVM, couldn't ScummVM be used for the cross platform? i know it runs on pretty much everything.