Yeah that's cool to start off with. Can you get some with plates so that they're adjustable, that way you don't have to buy new ones when you go up a size?!
I currently have a set of Dbs and a barbell, however I mainly use my DBs, cos they're easier to sling around and change the plates on. I only use my BB for stiff legged deadlifts which I have stopped doing since I got a nice dodgy back!