hp ProLiant DL360 G4 or G5 on FreeBSD 6.1-RELEASE?

[Joakim Platbarzdis]

I'm planning on deploying a server using FreeBSD 6.1-RELEASE.

What is your suggestion, should I go for hp ProLiant DL360 G4 or is  
there any sense in waiting for G5, that will be available to me  
within a few weeks?

Any compatability issues to look forward to? I know very little of  
FreeBSD (this is my first attempt).

Secondly, any suggestions on an equally powerful 1U solution in the  
same price range that would suit better for FreeBSD is most welcome.

Joakim