I don't want to knock your offer, your sure to find someone that offers it these days (it may be run from *their* cable connection thought

)
At that price, would you complain if the uptime wasn't good?
The reason, I ask, is think how many accounts/domains per server they would need just to keep the business up... and at that price it would be hard to pack in enough clients to get the ROI needed to keep adding more servers and paying support... not to mention the electric, phone... you get the idea.
I think I would advise getting a shared account that offered multiple domains. You also need to answer.... Do I *really* need anywhere close to that much disk space for web hosting accounts?
I wish you the best of luck, I just don't want to see you go down a road that's not going to be maintained as well as you expect it to be in the beginning.