Sure ya can. Your re-seller domain should be setup just like a normal domain. You can use PHP, ASP or even CF as long as you are on the correct server.
I never really cared for hsphere support center...
As far as a price... FREE would be nice but like anything you are in business to pay money. It would be nice if it was under 10 dollars per month ;).
Yeah same thing as scheduled tasks for windows only for the unix/linux os. There is some command used to pull data from a website and I don't think it is "wget".
Sorry I was un clear about that... I use NameCheap.com most of the time unless I have 100 bucks that I won't miss then I use enom and save a 90 cents or so per domain.
I also use namecheap (enom) only because they give the free whois protection, and because I don't have to give enom 100 bucks to my reseller account each time I run low... sometimes I don't buy domains for months.
So how much would it cost us to run the help desk on our site and support our clients by our self? I love the helpdesk just not the idea of offering personal support.