I've been reading around Rembrandt tulips and have reluctantly come to the conclusion that I should cancel that part of my bulb order. The RHS seem very negative about the breaking tulip virus and it seems irresponsible to be deliberately importing something that could cause damage to my other plants - apparently it can spread to lilies as well as other tulips. Sad, because the Rembrandts are really beautiful. I've read that some varieties have a 'benign' version of the virus (including Absalon, one that I really like) but I think I should investigate what 'benign' means before buying them.
