http://www.soundclick.com/bands/page_music.cfm?bandID=825703
"I Don't Want To"
Built with a Shure KSM27 and a SM57; Mackie VLZ Pro Board; Sonar 3.3; Ozone mastering software;
a Kurzweil K2000 antique synth with rotten drum samples....for which I apologize in advance; a little Marshall practice amp, a cheep Ibanez guitar and a cheep Peavy bass. The acoustic is worth more than $150, though.
Nice. I love it, really. You have a really great voice. This song is nicely written, and the arrangement of instrument parts is excellent. You know what to play, and when to play it. You've taken a bit of gear and made the most out of it. I love that! It just goes to show you that it doesn't take a multi-million dollar studio to produce something that is extremely enjoyable to listen to.
Having said all of that, I think your recording is really really good. But, as you mentioned, your drum sounds aren't the best. They were better that I expected, after reading your post though!
Here's my suggestions....forgive me if these are unsolicited....

I assume that you are using the midi sequencing capabilities in Sonar to trigger your drums? If you are not, that's where I would start. If you've arranged them on the Kurzweil, you can just play the synth's sequence and record it into Sonar. Once there, figure out how to split the notes to tracks. Back in the day when I used Cakewalk, it had a CAL program that would do this automatically. So what you end up with is a midi track for each drum sound. Now, solo each drum midi track, play it, and record it back into Sonar as audio. Now after all this, you end up with each drum on it's own separate audio track. Now, you can compress, eq, and mix it like it was a real kit. I think this could add a lot to the sound.
Other than this, the only other thing I would suggest is possibly mixing the vocal harmonies a little lower, and under the lead vocal. You have a great voice, and sing great harmony! But I think the lead should come out a bit more, especially toward the end when all of the extra parts come in.
Then, take this thing and sell it and become the next American Idol!!
Peace!
~Shawn