RE: First bipe?
I have to agree with bdtsr that the ACE is a nice flying bipe. I have a 4-40 that I picked up some time ago, there's a video of it flying with an electric set-up in the videos section. It is powered with a Magnum 61 (yes, it's a little overkill but this one was glassed).
Everyone has great ideas on what to use for your bipe but I haven't seen any questions on "how do you like to fly?". Choosing an airplane to fly really depends on your flying style. Someone suggested an Ultimate and unless you are pretty stable and into doing "tricks" it's not a good choice. For stable flying, look at the planes that are not short-coupled (those that have a longer tail length).
One of the other aspects to look at and question is what does it take to set-up at the field, or can it fit in the back of your car without having to be taken apart? I've had friends that have given up on bipes because they took so long to put together at the field. There are mods that can be made with ball sockets but that's another story.
Personally, if you are looking for a "nice" flying plane without too much hassle, the Ace (4 or 6-40), Hog Bipe or Stearman are good starts. If you want to scratch build there are plenty of planes out there, I think I have five or six bipe plans myself.
Whatever you decide, hopefully you'll do a thread on her!
Dave