Hi Brian,
All I have done for a month is what Joe said. I have only been re-mixing my GB songs in LE. You can indeed see how LE handles the GB stuff, but some of it is not that obvious. If you used the regular reverb & echo, for instance, that will be in Bus 1 & 2, with Bus 1 being the echo, and Bus 2 being the reverb, but they aren't labeled as such, just Bus 1 & 2. Any AU plugins you used with be in the insert slots, and are labeled. I found my volume curves in GB were nowhere near as accurate as I thought they were. Points I thought were right where I wanted them to be in GB seemed a bit off in LE, so I had to readjust them. Many of the effects I had used in GB, I replaced with the LE effects. I haven't recorded a single note yet, but I am getting to know the layout of LE quite well by just re-mixing this stuff. Soon, I'll be done with this and ready to start recording new material. I think that when that comes about, I'll have a fair idea of many things, and will find it easier than if I just jumped in head first. That's sort of what I did with GB. Before I ever even got out a guitar, I played with loops for about a month, just learning how things worked. Have fun... make music!