What memory should I buy?

My specs are in my sig, and I'm looking to buy a 512mb stick of RAM.

I want RAM that will let me overclock definitely over 166FSB, and maybe closer to 200.
Right now I'm getting random reboots also when I boot up at 166 or faster, I'm just at stock voltage though, and my RAM right now is total crap.
I'm looking for some RAM under $150, peferiably closer to $100, and I'd like CAS 2.
What should I buy, and where should I buy it from?

-inositle

why dont u check out the mushkin cl2 pc2700 blue for 114.00 it oughta suit your needs. or do some real digging and maybe get ahold of some of that kingston pc2700 valueram with the windbond bh5chips. some of the guys, with that stuff have gotten pc4000 speeds