I can vouch for this calc. I have one and used it for Calc 1, Calc 2, Physics, etc. This thing makes the work load so much easier. Pretty much solves problems on its own. A lot easier to use than the 83s and 84s IMO.
I feel you on that thing being complicated... I just use a regular little ti-30 scientific and have made it through calc 1 & 2, and physics 1 and 2 the HARD way.. Bump to try and help make someone's life easier.