I have "listened" for nearly a year now. Previous postings have not made it because our mail system appends a name that major domo does not recognize. Here's hoping that the moderator will catch his copy and make sure the posting makes it.
I want to reply to Dave Slomer's response to the calculator vs. computer dilemma:
"Although more accurate at it, Derive is NOT as friendly at graphing as ANY TI; the 92 (contains Derive subset) is friendly enough, even in 3D mode."
As a DERIVE user, I don't find this to be true. Early versions of DERIVE required manually setting a scale and center somewhat similar to range box work on a calculator. Recent versions and particularly the windows version of DERIVE are delightfully user friendly. There is a default mechanism to show as much of the graph behavior as possible and also a range box feature for graphing calculator types. The icons in the windows version make DERIVE even more friendly.
As to calculators vs computers, I caution the original poster to determine support/control issues before jumping in one camp or the other. The calculators offer the advantage of not requiring much tech support or interference from other bodies (ie Info Tech trying to tell you how to do things and not coming through with promised assistance). We are so fed up here that the math dept is seriously considering giving up computers in favor of a TI-92 (no one else on campus will be involved).