TMNT The Ultimate Collection, Vol. 1 has cover price of $49.99, but can be pre-ordered through Amazon for the low price of $31.17. It is scheduled to be released September 6, 2011.
UPDATE! Word via Bobby Curnow (@thedisastrix) of IDW on Twitter is that this is NOT the final cover art for this collection, and instead we should expect to see a BRAND NEW piece of art by Kevin Eastman. Cool!