MyBB Community Forums

Hi,
I'm looking for a template that makes MyBB look like a more "serious" development/q&a forum. Kinda like this:
http://www.mepis.org/node/12963

Or even like google groups:
http://new.glowingbridge.org/groups.png

Something clean and fitting those sorts of layouts would be fantastic. Are there any templates like this avaliable?

Thanks!