I ordered The Power To Believe last month, but I pretty much knew I'd like it as I own the dvd Eyes Wide Open. The only studio albums of theirs I've yet to hear or purchase are Lizard and Islands.
While on the topic of KC, I don't know why Construkction of Light gets so harshly criticized. It's one of my favorite albums of theirs (actually prefer it over the preceding album Thrak). I especially like the title track. So they reworked a few older ideas (Larks Tongues IV, Frakctured). So what? Although I prefer live versions of Prozak Blues where Adrian's vocals aren't as distorted.
ConstuKction of Light is really good, but The Power To Believe really pulls together the "new" KC with the "old". INCOTKC doesn't really stand up overall, outside of the obvious songs. There's things on In The Wake Of Poseidon that I like better. I don't have Lizards, and Islands is a very quirky album that I found myself liking and curious about. The fact that it was only 8 months between Islands and Lark's Tongue in Aspic speaks volumes about how fluid King Crimson can be. I think it was on the latter where Fripp finally decided to come out front and really take control.