Enchanced perception

[DTS 0]

how high should it be?

[Borris 0]

200 is the limit but make sure to balance your skills so that your main ones are higher then your secondary skills, depending on the build you go with damage skills or defense skills...

[Grillgrim 0]

You should at least take it to mastery (75) so you can see the bonus to find items. This skill I keep about 0.5 to 0.75 of my level and I have great returns on loot. Barrels/chests/hidding spots really start to put out (finding a Set Item in a box is ohh so nice). I have used it on my TG Utility character and enjoy the treasure hunts with him. You can augment your EP level with Relics, and +skills so 200 hard points are exactly needed. But then again you might get addicted to all the free gear dropping from the sky.