I was going to suggest you buy the best you can afford- that way you might avoid some of the new hatcher pitfalls, but it looks like you are already on the right path!! Im jealous! Wish I could go for one of those!!! Maybe someday.....
Hatching is sooo fun! There is a reason there are threads dedicated to hatch-o-holics! Its very addicting!
My only suggestion? Have something of a plan- what breeds you want, how many chicks you can house and feed, what your future goals are. Its sooo hard to let go of any babies you hatch, they are like family after awhile.
What breeds are you into?