See! You are already addicted!! :-D Don't be afraid to handle them even if they are aggressive. It is a lot easier to get them used to you when they are small. I'm not saying you should over-handle them or anything, but it makes cleaning their enclosures and stuff a lot easier when you can just scoop them up. ;-)

Can't wait to see pics of your latest one! And good luck on your hunt to find a Blue. I just got one this week and he is so gorgeous. They look so much more amazing in real life than in pictures; it's so hard to capture their true colors on film. :-)