I"ve been doing lots of research also.. went from BCP Pro to BCP, then thought of the CX.. then the HBFP, and much like you am now gearing more towards the HBK2 ( with lots of spare blades.. lol
Check out the Esky sub forum
http://www.rcuniverse.com/forum/forumid_481/tt.htm for lots of info on the HBFP and K2. I would consider starting out on the HBFP (in zero wind conditions) before you jump to a K2. The K2 will be much easier to fly once you've learned to "fly the tail" on the HBFP. The K2 is far more complicated then the HBFP and, as such, can more difficult to setup and repair. Another thing is that the HBFP comes with "plastic" blades that are somewhat more durable when it comes to crashing. Also take a look at the Esky FMS sim kit (part# EK2-0905A, ~ $20) for a low cost entry level SIM.