I'm looking to make elegant black and white cake pops for an event and am wondering what the best brand of candy melts is? I've tried a black cake pop before and the candy never got thin enough to dip...any suggestions?

I think the prevailing opinion on CC is:
People don't seem to like Wilton candy melts very much.
Merckens melts are often recommended, as are Scharffenberger and Guittard chocolate.
http://www.streichs.com/Chocolates/Merckens-Candy-Melts-1lb.html
Chocolate melts can be colored with black, but you have to make sure you use oil-based colorings, not regular food coloring. White chocolate melts could be used as-is for the white.
For thinning the melts use oil, shortening, or paramount crystals.
The melts are better used when fresh, and if they are melted to a too-high temperature, they will thicken.
HTH

You can start with chocolate and color it black. You can also find black ones on Amazon or here http://baking-supplies.kitchenkrafts.com/kitchen/Black%20Candy%20Melts. Wilton has discontinued the black since Halloween's over.

If you start with chocolate almond bark and add black coloring, be sure to add a couple of tablespoons of shortening (+/-) to keep it thinned enough to dip. Almond bark works better than candy melts and isn't nearly so expensive.

Look for the BLACK CK brand of confectionery coating at your cake decorating store. I used it for covered Oreos for a wedding recently, it worked great!!