Duplicolor or Summit paint?
I have painted with the duplicolor stuff and I PERSONALLY did not like it...BUT some people can lay that stuff down damn near like a pro paint job.
As for the summit stuff, I have not personally used it so I cant say.
When I bought my paint I was seriously considering getting the summit brand but when I priced out paint at my local paint shop...it made more sense to go that route for a better quality product.
I ended up getting a gallon of plum crazy purple,a gallon of clear,a gallon of reducer and a quart of hardener all for under $300.00
shop around locally first and see what kind of deal you can find.