Took the plunge an bought a pair of PL700's. Much better made than the sealed version and has even a boot to seal the light bulb.
I went with the Sylvania 9003 (I run these in my bike too) and the light output is absolutely great.
Not a great picture, left hand side is the new and right the old....
Hard to beat the looks....
Total investment $162 (and have a spare set of H4's) --- well worth it.