I believe you can in pidgin

 

A calculator? either buy one or go on the internet and use one

 

trillian sucks, i used to use it but it was buggy, annoying, and slow. pidgin is far, far, better, and supports more protocols.

 

I used to use pidgin. Definitely would have to recommend it.

I use Digsby now though, which is nice because it also lets you connect to Facebook chat (and I think myspace and twitter, but I don't have accounts on those).

It's cool because a lot of my friends who don't use traditional IM programs do check their facebook a lot, so it's a way to keep up with them without having the page open all the time.

Does have a couple bugs though.