[EDIT 3/8/2009] Never mind. Their service now sucks and considering the cost, definitely not worth the effort.
I've been using Ultima Hosts as my web host since April, 2007. The main reason I got a web host was so I could mess around a bunch of stuff that I couldn't of done otherwise (even though I spent many years as a web developer, I never really got into the admin stuff). I spent weeks searching for a good host, unfortunately I had no idea how to determine if a host was good or not so I ended up asking the ch 9 community for a recommendation and they led me to Ultima.
Now it should be noted that my requirements for a web host are pretty minimal. I was looking for one that supported ASP.Net 2 and included SQL Server. I didn't have any serious plans at the time for a website and certainly wasn't concerned at the time about bandwidth or large amounts of storage. I just wanted something that was developer friendly, and Ultima certainly delivers on that.
If you are interested, here are some of the specs for the Standard .Net hosting package (this information is likely to go stale, check their website for current information)...
(the Professional.Net package is in parens)
Cost: $199 ($299)
Space: 2GB (5GB)
Domains hosted: 1 (5)
Sub domains: Unlimited
Bandwidth: 30GB/month (100GB/month)
Mailboxes: Unlimited
SQL Server databases: Unlimited (with remote access)
ASP.Net 2.0 (with full trust)
.Net 3.5
Total DNS control (I used this today to switch to Google Apps for Your Domain)
Lots of applications (such as Community Server)
Lots more, check out the website if this isn't enough for you :)
All this plus great customer service. I have sent them numerous emails and they have always responded very quickly and accurately, even in the middle of the night (usually within 30 minutes or so). In fact, it's their customer service that has prompted me to write this review (perhaps I feel a bit guilty about wasting their time with all the dumb questions I've asked :).
If you are looking for a company to host your web site, I would enthusiastically endorse Ultima Hosts.