Apple Logic Pro /LogicExpress Discussion

Hey all -

any opinions on the best pro-tools compatible upgrade path from a 
g4/digi001 setup is?

I'm assuming that pretty much the only choice is the 002 or 002r, but 
wondering if I'm overlooking anything...  2 ins won't do it, so the 
mbox is out.

the other question is, is it really worth it to upgrade at all when 
you've got a pretty decent setup and it will cost you a small fortune 
to do so.  apple and digi have got the lowend in a tight place 
requiring us to upgrade the computer and audio equipment at the same 
time.

I'd love to hear from anyone who's done this migration.

thanks -

Michael