I bought a box last month to supp the in between lunch and dinner time while at work.
Snickers Marathon Protein Bar
26g Protein per bar
Taste is ok for the most part - Make sure you have a bottle of water to help get it all down.
The absolute best tasting bar that I have come across is the ISS Sport Oh Yeah bar. The Peanut Butter and Strawberry is nothing short of awesome in taste. Only downside to this bar is that is got 7g sat fat, but also 7g Mono and 5 poly. 26g protein
Here are some links for the down low.
http://www.snickersmarathon.com/protein_bar.asp
http://www.issresearch.com/products/p_ohyeah.html