FT to GIMP, Java, C++, C or Perl.
A full featured tutorial/Fast Track on recompiling linux kernel in your system explaining all optimisations.
Quake 3 Engine based and Quake 2 engine based freeware games(ones that don't suck) and some other similar good quality games. Please find a Counter-Strike equivalent.
You can also concider giving an Old Epic(a hyper successful game) like Half-Life, Counter Strike: Condition Zero or Unreal Tournament for free or for a small premium.(I guess they all also have linux installers built into the ISOs)