I have some getpharma.com spanish links up.
They have several languages available including German.
However, I don't like their webmaster tools.
Also, found a few Spanish banners at linkshare (Haband, for one) but the site
is in English.
Plus, type "espanol" when looking for advertisers, links, products at cj.
AND, YES, do post more Spanish(-English) affiliate programs.