Basically I am looking for a a reseller that offers windows and linux plans for resellers.
Any suggestions?
Thanks!

H-Sphere hosts can accommodate your need.

You can buy them from different companies. I recommend Hostdime for Linux solution.

If you want to offer both in one control panel, try Cartikahosting with H-Sphere. Or do you want to separate them? How about the disk space, bandwidth requirements?