Digital BW, The Print

I'm very grateful to all of the help I've received, and I hope to be able to answer some 
questions rather than simply ask them soon.

My head is swimming with RIPs, ICCs, curves, MIS inks, etc. etc.  I've come a long way I think 
in my understanding in the last 48 hours, but I'm still hazy in a few areas.  

1. What is the relationship between between toning curves (such as the "warm", "neutral", etc. 
UT2 and UT7 curves on Paul's website) and ICC profiles (that are specific to inks/papers but 
don't have reference to temperature).  Would I use both of them, i.e. a warm tone curve along 
with an ICC profile for the proper ink/paper combo?  

2. How do the ICC profiles and toning curves for the r220 interact with using a variable UT-
R2 inkset as described by Clayton?

3. With the 2200, is there an advantage to using the ICC/curves method instead of QTR?  If I 
did use QTR and UT7 inks (with the 2200), which inkset would I need to buy - neutral, warm 
or variable (as described in Paul's UT7 for 2200 article)?

Thank you again for your invaluable help,
Chris