Bester said:

I've always been interested in the Mandalorians. Can anyone point me to a good Mandalorian EU story/novel?

Yes.

Jango Fett: Open Seasons is really good, and so is the companion PS2/Gamecube game Bounty Hunter. So are the KotOR comics, some of which feature Mandalorians quite heavily, not to mention the games. There are a couple old issues of the Marvel Star Wars comics from way back (68 and 69) that deal with them, as well, and also the Tales of the Jedi comic from the 90s has a couple issues that deal with them.

There are a few episodes of The Clone Wars cartoon that feature them, but in a way that is pretty different from what one would expect, hopefully it's not a permanent change, but still...

There are also a plethora of novels by Karen Traviss dealing with the Mandalorians that I absolutely hate. I feel like she really ruined them by exploring every little bit of their culture, giving them an actual language (the first almost fully-formed Star Wars language), and generally going against what they always stood for. The whole thing about the Mandalorians is that they were cool because they were mysterious and secretive and we didn't know much about them, like with Boba Fett, she threw all that to the wind and completely described almost every little detail of them, which took away that mystery and intrigue and made them accessible to all the idiots out there who are not deserving.

Plus she made Boba Fett cry in one of her books, which is not cool.

My suggestion is that you first read up on the earlier stuff, to get an idea of how the Mandalorians really are, and then, if you positively must, read Karen Traviss' books. That should show you the differences in how the Mandalorians should be seen, and how she twisted them and made them ugly. My only consolation is that she ragequit writing them after Lucasfilm decided to do the Clone Wars episodes with them and she didn't like the changes, so now her continuity is up for grabs for a better author to tackle.