The 100mm macro is one awesome lens! It's tied in first place with my 50mm f1.4. It's very sharp, even wide open. If you have any questions regarding this lens, feel free to ask.
The 10-22mm s definitely a lens I'd love to get. I'm currently debating between getting that one, the mpe 65mm 1x-5x or something in the 17-80mm range (probably for my graduation present, in October).
I'd love to get the grip as well. I actually ordered one, but customs "lost" it (along with two 1 Tb disks), so now I have to wait 2-3 months for the insurance company to pay so I can order it again.