Seriously -- congratulations on two healthy twins!
I've never felt right about hoping one way or another about gender, because I didn't want our children feeling like they were the 'wrong one'. Before our first child was born, I figured I knew a little better how to relate to a boy (we decided not to find out in advance). When we had a girl, it turned out we got on like a house on fire. She's wonderfully girly, and all sorts of rambunctious fun at the same time.
When our second child was born, we found out the gender ahead of time, and - yes - boy! Oddly enough, I realised that I might not be so confident anymore about relating to a boy. Five months later, I've found that I do. I'm thrilled with both of them. They're very different, but they're thick as thieves.
The punchline, for those of you skipping the middle bit: I bet they'll be wonderful. And congratulations again!