Of the three Special Editions, I’d say Episode IV is the one where they went the most amok.  The new stuff just feels like filler, especially the Mos Eisley bumps.  I’m fine with the added Jabba the Hutt scene, even if it looks like crap – although admittedly the DVD version looks way better than it did in its theatrical release (I haven’t seen the Blu Ray version yet).  I’ve already talked about the  Han Shot First thing (as has everyone on earth), so I’ll let that lie.  The only welcome changes were the extra ships in the climactic battle scene, and they didn’t exactly thrill me, but they certainly didn’t bother me.  I say stick to the original.