I like what you have done with your site man. I think you have a potentially valuable asset there. Since you're already receiving hits, I think that if you continually developed this site and held onto it it could be worth some serious dough. A quick search of Yahoo! with the keywords Music charts, brought up VERY FEW competitors, the obvious being billboard.com. So since you have very few competitors, coupled with the fact that your site is VERY easy to navigate and straightforward (unlike billboard.com's), your site could very well take that number 2 spot for that category. My advice, hold onto this one bro, hold onto it until this site becomes well-known in internet and music land and THEN sell it, IF you want. OR hold onto it and make cash via any future-implemented features and/or ads. Good luck! Keep Namepro informed of this domains future happenings!
Would like to add that I dig your HTML/webmaster skills as well! I like the random-image logo and pretty much the whole layout and navigatibility of the site.