best interconnects sub 100

Used Audioquest Emerald or Opal.

Cheap is subjective. You can get good and cheap at Radio Shack. What is your budget? There are alot of stores off-loading their old Audioquest (Topaz, Jade, etc) at about 40% off retail if you call around. There is also a DIY guy on Ebay who sells good cables anywhere from $30.00 for PBJ look/perform alikes to $80.00 for look/perform alikes Heros'. If you go to Ebay search on Cableplex. I have 4 of his PCs. At $50.00 per, you can't beat 'em.
Happy hunting!

I've had good luck in my younger years with Kimber Hero, depening how short you need them to be it may be an option. Good luck!

Music Metre is sold/auctioned on this site for around your price. I replaced my PBJs and Tributaries Silvers with the M.M. Silvers and was stunned by the difference.

I have enjoyed cables made by Kimber and Cardas. Sometimes their midline cables are available in your price range on Audiogon. If you can keep the distance between components short then 1/2 meter cables are great ways to stretch your cable budget to include highline offerings. Good luck.