For what it's worth, I'd recommend not touching TCL in any way shape or form. Coding can be a bit of a hill, sure, but you'll get there in the long run, and python is syntactically a fairly easy language to get a handle on.

PyQt is also a great set of stuff to play with, and results are easy to come by. It's a bit intimidating to start with, but there are plenty of resources on the net about both python and Qt.

I've always been a fan of teaching myself things. Learning by experimentation isn't for everyone, but it's certainly a valid method of learning, and learning to teach yourself things means you don't get stuck anywhere near as easily.

I'd also be more than happy to mentor you a bit about either myself if you want on IRC. I'm on freenode (#maemo, #mer and everywhere else) as w00t.