Not really drum and bass, but what the hell.
It was okay. I don't really like the synths. And seriously, get some better drum samples. I like the pad/bell thing at 1:15. The melody was awesome and happytiemz. The bass is a little too muddy. Try EQ'ing it a bit. The synth after 3:40 was awesome...
I don't know about soundfonts but I have a giant collection of kicks, snares and hats made specifically for drum and bass. :)
I guess I could upload it somewhere, but I'm too busy at the moment.
It's okay. Turn the bass on the kick up, and turn down the synths. It seems a little offtone sometimes, but that's easily fixed. Your hi-hat is too "straight forward", put some variation in it. Maybe turn the drums into a breakbeat instead. It's a good club-banger, but it's far from done yet. ;)