(if you go for cheap things like me)
I've got High energy ignition came as a kit from Dick smith. its proven to be reliable kit came with aluminium box and cost me $25 a few years back. i don't know if they still sell them. the kit operates on points as a signal pick up but there is virtually no current flowing thru so the mechanical wear is little to none.
[i find that you shouldn't mount it in the engine bay.. as i found out on a rainy day the water gets in. because i still had my points i just bypass the kit and run ignition on the points, went home, next day hook it back up and the kit still works]
there is also programmable high energy ignition from jaycar that lets you map the ignition advance and optional knock sensor. there are 3mapping rpm point (low mid high) but that's pretty much enough unless you've got a hi rev racing engine. cost about $100 but u could probably get something like a pointless kit from your vw shop with that price
high energy ignition makes cold start easier and low rev operation too..
these high energy ignition has current limit
and there's a CDI (capacitor discharge ignition) which stores charges inside a capacitor and release a burst into a coil. altho the kit they stock is for a bike but one of the guy said it should work the same
http://www.jaycar.com.au/productView.asp?ID=KC5466
(if you go for cheap things like me)