I didn't read every response that was written regarding your question, I read maybe about 1/3 of them. So I apologize if someone else has already made the suggestion I'm about to make.
I suggest you get a used 5DmII from FM Forum's Buy/Sell board. And for lenses, you really do want to start out with something good. I would recommend the original (used) 24-70mm f/2.8.
Why the 24-70mm f/2.8 over the 24-105mm? I own both and the 24-70mm gives you amazing photos with that f/2.8 whereas the 24-105 gives you an f/4. You sacrifice on reach but you've still got quite a bit of zoom range and a faster lens. Image quality from both of these lenses are amazing. When the 5DmII was being released a few years back there were tons of people claiming that the glass would not be good enough to create sharp images at 21MP. I have tons of photos from Fashion and Wedding shoots I've done where you can see the pores from the models face. These lenses are that good.
The 24-70mm has been my lens on vacations, studio shoots, landscapes, and events. Its on my camera 90% of the time. Its nearly an all purpose lens.
If you have questions about a specific lens I might be able to help. I've listed my current inventory below:
35mm f/1.4 L
100mm f/2.8 Macro
17-40mm f/4 L
24-70mm f/2.8 L
24-105mm f/4 L
70-200mm f/2.8 IS
100-400mm f/4 - 5.6 IS L