Links to a great bench design have been posted here http://www.reload-nrma.com/orderform.html
for $3.00 or as Steve has put up for download for free. He has it down on this page http://www.again.net/~steve/table3.html
listed mix and match named reloading bench plans. I am sure he sends 3 bucks to NRMA. This design could cost you some bucks to build as specified but it will also give you some great ideas.