The cheap way: Dark Roast Java Mate (5 lb bag with new email list member coupon, free shipping ~$53). Ramon nut plus herbs make this yerba mate taste somewhat like coffee. Mate enthusiasts either like this stuff or turn their nose up at it (mutton passed off as lamb).
http://www.guayaki.com/index.php?p=view ... oduct_id=2
The expensive, Yuppie way: Republic of Tea, Yerba Mate Latte, 1 lb $32 plus shipping
http://search.republicoftea.com/tea/Yer ... te%20Latte
Try the 'refill' size first. I think its quite tasty, just waaay too expensive for what it is, mate with herbs.
I have tried to argue with RoT CS that they are cutting their nose off to spite their face with pricing that will kill sales, but they are deaf to my entreaties.
*shrug* I like the Guayake version and recommend it readily, when asked.