Stress testing a new FreeBSD server?

[Matthew Law]

I would be grateful if anyone could recommend any tests, scripts, ports or
packages which would stress test a new FreeBSD box? - both CPU and disk
I/O.  I would particularly like to get the processors nice and warm! :-)

We already use bonnie++, unixbench, etc. but I was wondering if there is a
proper suite of tools for doing just this and google hasn't brought up
anything particularly appealing.

Thanks in advance,

Matt.