I am from southern California, practically on the other side of the continent from Trey aka www.chipinstalls.com.
I found out about chipinstalls.com on these forums, and at first I was apprehensive about sending my console out so far to someone I didn't know. There are alot of good modders in So Cal, but I liked what I heard about chipinstalls and figured I'd take the plunge, sending it to South Carolina.
I sent in my PS2 to have it modded it with a DMS3 v2 chip. First of all, my unit is a v4 PS2, not exactly the easiest console to mod with a DMS3, and the laser on it is weak to boot. Trey took my unit, kept me posted almost daily, and had it back to me in no time. He is quick, professional, and above all, a great guy to work with. I definately recommend him to anyone in the US looking for a dedicated modder who does a professional job. I myself will be going to him with any next generation consoles in the future, granted if he is still modding. If you have any doubts or questions about Trey and his work, feel free to message me.