Here are some things do do for optimization for the FreeBSD kernel:
For x86 generation optimization:
For Athlon and AthlonXP CPU's:
# cpu I386_CPU
# cpu I486_CPU
# cpu I586_CPU
ATHLON_SSE_HACK doesn't always work though.
For all AMD SSE instuctions:
A simple 'device pcm" should enable any sound card.
5.0 is definatly a excellent OS, but I still prefer 4.8 over it for the time being. All the new stuff.