Matt,
Ron is correct. Leather Luster is just about the best thing going for basketball shoes. You can order it from their web site or you can send your shoes to them and they'll do them for you. Here's the web address.
http://www.leatherluster.com/
If you're not interested in Leather Luster, try this.
1 - Strip your shoes using finger nail polish remover.
2 - Use Kiwi Leather Dye and let it dry.
3 - Use a black leather polish paste and apply a liberal amount to the shoes.
4 - Using a cigarette or grill lighter, melt the polish into the shoe leather. Just avoid the rubber soles.
5 - Buff them with a sprinkle of water and polishing cloth.
6 - Just touch them up with the paste polish once a week.
If that's too much work, KIWI make a polish called Honor guard that gives the best shine of any of their products. But it does tend to crack eventually and has to be stripped and re-applied.
Hopefully, something here helps!
Tony