Depends on what you are looking for in a long bow--there's a lot of personal preferance involved.

I love "longbows" myself, but I really don't care for straight or mildly reflexed limbs and straight grips--the "traditional" style longbow. Those grips are anything but comfortable to me, and that design will generally be slow and have more hand shock than my elbow will tolerate. Then you have the other extreme, the radical "hybrids" that look and feel like recurves. My personal favorite is a mild to moderate deflex/reflex design with a grip that is comfortable and consistent. Not a pistol grip, but a bit more than just a dished out spot.

You can get most any of these, new, for well under $500. You might also consider a flatbow (which most of today's longbows really are anyhow--they just aren't labeled as such).

Chad