If you are interested in the IMCR, do it now before April 2012. If you already have it, you'll likely be grandfathered so you can continue to use it, or at least get some accreditation towards whatever they come up with.
If you don't have it, your only option after April (at the moment) will be the IR with associated irrelevant exams and horrendous cost.
I'm cracking on with mine before EASA get rid of it!