I don't have a URL yet, but it would be good to know.
As important for the OP, though: Set up a couple of test sites - either on subdomains or on dreamhosters.com subdomains. These test sites should include a few static pages, maybe some media files, and a vanilla wordpress installation (advanced one click install, not the "easy" install). I find it very, very helpful to use the performance of these sorts of sites and pages to be helpful in debugging performance problems and also in reporting problems to Dreamhost support. If you report a problem with a static site and it's just a static page that takes 30 seconds to come up, they'll know exactly what the problem is and won't be distracted with figuring out whether it's a problem with your coding!
The same with a vanilla advanced one-click install with the defaults - it's a known configuration with known performance characteristics for them.
I find that I can report 95% of my support problems through my test sites. It really helps with my response time from support because they can easily pinpoint the problem - though it doesn't mean they'll be able to resolve it as my wife is still waiting for a resolution to the problem on her filer.
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