Nir,

You could try using the BevelPlus plugin from AW's site. This will allow you to draw CV curves and extrude them like polys with whatever bevel amounts you want and cap options. If you use 0 values, the results are like a lofted curve with no beveling, yet you can still have your solid poly caps. You wont have to deal with planar trims (a godsend for me). If you want to see a quick example, check out the Les Paul screenshot in this old thread. I was just playing around with BevelPlus and booleans.