Jskillz,
Since you said you're getting a blue tube from a friend, I assume it's not cutting into your "Christmas Microphone Money." Don't bother even killing yourself trying to figure out what a
DMP-3 is, the Presonus will do you just fine - and not just cuz you're a new jack. As the years go by, you may end up holding onto it simply because YOU like it, as someone alluded to earlier. It will serve your current purposes just fine. In time, if you find you don't like it, then let me be the first to welcome you to the world of "lateral movement is a matter of taste." Use the blue tube, it actually has presets on it that will help you get immediate results, and give you a great jumping off place to actually begin to understand what the hell all those knobs, numbers, and pretty flashing lights are. If you're feeling game, then by all means try to trade or sell it and get something else. I'm just not sure it'll matter now, and when it finally does, you'll hopefully be in a much better place as far as choosing what'll work best for you.
Christmas Mic --------> do a search in the mic forum here for mics under $300.00 (or $200.00, etc). Also try a search in the same place using the names of the various mics you're interested in. I dunno how much going to a music store to audition mics will help you, since you as yet have no point of reference, and won't yet be able to discern what you think from what the sales rep is coerecing you to think. Just as well to take your chances with the advice you get from here, I think. Since Lost Studios can kinda vouch for GC in Manhattan, take your chances, if you wish (and maybe take an adult with you, for what it's worth)...
Oh yeah make it easy on us and take heed of this advice:
P.S. just cuz you got that cash coming on Christmas doesn't mean you gotta go spend it pronto. Maybe see if you can get a gift certificate from the music store or something so you won't blow it, or have Mom or Pop Dukes goto the music store for you, with the names of a few mics & let 'em surprise you. The fact that you are no closer to making an informed decision on your own prolly means you oughtta roll with whatever the flavor is you got close at hand until you learn a bit more. And keep your first mic no matter what - you'll be glad you did in 15-20 years just to look back on (and maybe even use!!!).
Good luck.
dj dolo