If I'm reading this right, you're saying pay about $100 for a used D30 or $2400 for a new D60? If that's the case, you might want to go with the D30 for a while, and spend some money on some decent lenses.
Realistically, there's not many differences between the D30 and D60 other than the pixel count. Many people referred to the D60 as a "spiffing up" of the D30, a stop-gap temporary product, which seems based on it's short life to be accurate.
If your goal is to be able to print some very nice 4x6, 5x7, or maybe even 8x10s, then you shouldn't have a big issue with getting the D30. Anything much larger than that is going to start to lose quality pretty quick, but you've got to weigh how often you're really going to print anything that big anyway.
Another thing to consider is that even if the Dwhatever replacement is announced in March as rumored, it likely won't come out until April or May, and then demand will be huge for a few months following. Realistically, it might be August or September before the camera is easily obtainable. In that time, you could have spent a lot of time with the D30 getting the basics down (composition, exposure, etc) and upgrade IF you feel that you would benefit from whatever is available.
At that point, you could probably sell your D30 for more than you paid for it.
One other thing to consider though, it's not clear what body the D60 replacement will use, so you may need a new housing if you buy either the 30 or the 60 and want to upgrade down the line.
Just my $0.02
Tom