Contrary to what Network Solutions wants you to think, they aren't the only game in town for registering your domain. If you're building a site (ASP enabled or not), the best way to promote it is to get a domain name that doesn't change, even if you change ISPs. The Internet Corporation on Assigned Names and Numbers (ICANN) is in charge of accrediting domain registrars around the world. To find alternative providers for domain registration services, you can visit their list of accredited registrars at this URL:
<a href="http://www.icann.org/registrars/accredited-list.html"> http://www.icann.org/registrars/accredited-list.html</a>
I've found registrars on the list whose registration fees per domain are less than $10/year. It sure beats the $35 that other providers are charging.