WordPress expert – Database tuning

Does anyone know the source to find a consultant to help me make my site more efficient and “bullet-proof?”

I’ve tried nearly all tweaks so far.
WP-Cache
eAccelerator (php)
Varnish (http proxy)
Plugin output cache
PHP_Speedy

My site runs slow, and MySQL just taps my server (which is a dedicated 2GB Xeon)

I think I need some Database tuning, possibly even custom work.. not sure. I’m lost as to why it’s so slow.

Site gets between 1-2MM pageviews per month.

Please help guide me in the right direction. I’ve tried several times get some direct help here to no avail.

My email is periginald at gmail dot com.