Crafty jig for rear tapers. I just finished the adjustable block type you use with a drill.
Regarding the point and nock taper jig, You can make a very simple one without anything but a belt/disc sander.
http://tradgang.com/noncgi/ultimatebb.php?ubb=get_topic;f=2;t=000059 I made one like Eric Krewsons but with a stop block. It was very easy and works great, I'd recommend grabbing a $1 3/8" dowel just to test the taper angle and get it tuned in. I made mine from scrap ply. Take that 3rivers! I'm only joking but, free always beats paying money. $35 can go to a nice set of shafts.
Good luck.
P.S. I think the stop block is really key, I'm just not steady enough to get a perfect taper without it. Cheers