Tim - it sounds like you are asking two questions here. My view is that the Angel Eyes things would look wrong on a Morgan, as they're simply too contemporary for the design of the car. You can fit LED sidelight bulbs (and some of them are quite bright and work well as an improved parking light), but they won't help the overall effectiveness of the dipped or full lights, which I think was your 2nd question....
I fitted some discrete (well I think so) but very powerful LED driving lamps which are wired up to the main beam and they utterly transform night driving - better along dark lanes than the bi-xenon HID things on my Audi. Dipped beam remains somewhat 'old-school', but then those are for around town, under streetlights and with other vehicles about. As far as I am concerned, high beam is where it matters.
These things are available on eBay and although not cheap, boy do they work!
