gluing up table top
I'm working (starting) a coffee table (app. 24"x48") using antique pine that was originally countertops in my grandfather's store. The boards are 14-15" wide, and 1 1/4" thick. I've ripped what I need for the top into 3 1/2" pieces, a couple of inches longer than needed. I'm almost ready to start the gluing process. I'm planning on using wood dowels in the joints, and yellow wood glue.
Two questions, and ANY suggestions would be appreciated:
One, will any other mechanical bond in addition to the dowels be necessary?
Two, should I wipe the excess glue off as it squeezes out, (potentially causing areas hard to stain) or wait and scrape it off when it dries?
ps: I'll probably be back in later stages for more help.