My advice would be to stay well away from dreamhost because they've been terrible lately. My site has been down all evening (at least 7 hours now) and support have neither fixed it nor explained what's happening. This isn't an isolated incident either, there's been a ton of downtime recently. If you value your uptime (and sanity) choose another host, dreamhost are just too slow to fix serious problems.

I have an account at bluehost as well, I recently got hit by the 'CPU Quota Exceeded' messages too so it's hard to recommend them either. -- PoRtCuLLiS