PuTTy is a rather brilliant Telnet/SSH client which allows you to have a list of favourites to connect to and is very configurable for different situations. I use it all the time, it's always behaved well. I also have a version on my Nokia 6630, great for restarting servers etc on the go.
Download here:
http://www.chiark.greenend.org.uk/~sgtatham/putty/