Exactly, although it does help to bypass the DNS records of your ISP :)) and lets face it there are that many tools and coomands to find IP these days you can easily keep up to date.
Simply open the command prompt and type: tracert www.brainking.com (the ip address will show in square brackets)
When I used to register domain names and took care of technical problems I remember somewhere online is a "nslookup" took to do tracert on IP addresses.. but I cannot remember the site which i used.. :o( BUt perhaps anyone from you remembers it?