I'm just getting back into it myself. I started with the el cheapo one from Harbor Freight. It actually did a fairly decent job. I've since bought a Badger Patriot 105. Found it on Amazon and with a $25 discount for using their credit card for the first time, I got it for less than $42 including shipping. Still learning to use it though but I like it.
You'll need to get a little more specific about kits. What genre, what makes and models, etc.