@michel: There’s also an easy solution to the member blog themes matching your regular theme. you can read a tutorial Andrea_r wrote about it on BP-Tricks.com. I’ll release the BP 1.2 member blog theme as soon as 1.2 launches. The forum thing is more complicated and if you want to do that right you need to invest in a programmer/designer
My experience with BP so far has been the complete opposite.. If you spend some time getting to know people and helping others out, before you know you’re part of the people you call “the insiders”.