Better looking - no.
Brighter - wire up relays with nice thick cable feeding straight off the starter motor terminal (from the battery, maybe put a fuse or two in as well). You'll need at least two relays (dipped + main) and maybe four if you want each side to remain on a separate circuit (good if something goes wrong).
Then put in 100W/90W bulbs (100W main, 90W dipped) and enjoy the fruits of your efforts... don't forget to set up the beam pattern.
I've seen a Mk1 modified with round lights (attached).
-Alex