i use "automagic" leather conditioner with lanolin.

this is one of my favorite products...easy to use, low sheen, supple, true leather scent and no stick feel. most haven't heard of this b/c it's not available to the public consumer market. internet only or through detailing distributor companies.

they also have a great claybar..."clay magic". it leaves no residue behind.

http://www.goodspeedmotoring.com/subcat.php?man_id=5 (scroll down to product).