A little advance advice. Build a 3rd hive for a spare. You will be happy you did once swarm season kicks in. You don't want to get a phone call that a basket ball size swarm is hanging in a neighbors bushes and have no where to put them. Last year I got 14 swarms and that was a bad year for me. Most years are closer to 20.
Danno offers some good advice...This was my first year, my "plan" was to buy 2 Nucs and have a local Beek catch me a swarm, in other words, three hives.
WELL....as a lot of Beeks will tell you, if they haven't already, beekeeping is addictive!
I was up to 11 hives at one point, lost one, so I'm sitting at 10 now...spent the day today building more boxes.
As I told my wife the other day, I'm really not interested in growing my hive numbers...At the same time, I know good and well that if I get a swarm call, I'M GOING GET THOSE BEES!
Can't really explain it, but can't say no.
Had a Beek once tell me you can never have too much woodenware, thought that was an exaggeration, turns out he was right!