Supercalculators

I'm thinking about getting a new calculator.  I've had a TI92 for ages and ages, and I'd like to get something that's like that, but more powerful and faster.  From what I read on Amazon, the TI Voyage 200 is the best thing TI sells, but it doesn't seem like it's such a big step up from the TI92 to be worth $200.

Basically, I want Maple but on something handheld.  Is there anything else out there?  I guess I could just buy a netbook and run Maple on that.  That'd only be like $50 more. :/

>>10
>Casio 115ES

Damn, a $20 calculator with an equation solver and calculus functions?  I might have to upgrade from my TI-34 for my non-graphing calculator needs.  (And it's even on sale for .1% off on Amazon!)

OTOH, there's just something in my brain I can't shut off that equates "Casio" with "Cheap piece of shit".