Noticed the dealer had a 540 w/ DSP in it, I wasn't about to miss the chance to try it out. Anyways, long story short, I was playing w/ it for a good 10 mins, my conclusion is:
1) I am an idiot, and don't know how to set this thing right (Doubt it, I can afford a BMW so I can't be that dumb ;-) ) .
2) DSP is the biggest rip-off from Germany!!
After consulting w/ Brian Lewis, our residence audiophile, I am gonna delete that option, just hope they haven't built the car yet. ;-)