Lunarpages is my favorite. Everything is very easy to use, lots of features, low prices, etc. One bad experience with them was when a server failed and one of my clients' sites went down. It turned out to be a lengthy failure (about three days). However, because they make it easy to make subdomains, I was able to quickly point (change name servers at GoDaddy) the client's site to a subdomain I created on my site and upload the files to my server.

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DrTandem's San Diego Web Page Design, drtandem.com