Aye, older Dell Latitudes (C series and first gen D series) have a trackstick (red dot as it's known to IBM users) however all newer Dell systems have discontinued the use of the trackstick.
I suggest a micro-mouse, corded or cordless, that is close to the same width (depending on your hand size) as a standard mouse. I can't stand a touchpad either, but I can't leave my house with my system without my micro-mouse.
If you do buy one take into consideration what you use it for BEFORE you buy be it document work, gaming or imaging editing. If you perform just office work, a standard 15 USD logitech notebook mouse will work great; if you game I suggest moving yourself up to a laser notebook mouse like the logitech V400 (it comes in orange and slate).
I don't work for logitech, but I've used nothing but logitech periphs for years and never had a single one break.
Your Friendly Government Dell Tech,
J.E.
DellTech Rep ID - 172946