Hi Cdi3d,
When sketching at work I use a wacom cintiq 12wx (though for this sort of thing I generally use it more like a regular tablet), and when sketching at home I use a wacom bamboo since they're cheap and portable.
The wacom bamboo is more than enough if you're not going back and forth between programs, and want something for travel thats light and fits in a laptop case.
I've tried working with a mouse before, but I don't care for it much -- I find it slow and inaccurate, and I definately miss the pressure sensitivity you get with a tablet -mice make blending and line variation much harder.





