Well just to throw another angle in here I would say don't just stick with the big name brands. There is a growing group of small craftsmen who make great PUs and because they are not wed to a certain product line, they often will make pickups to suit your specific needs. On my first guitar I made I had custom P90s made for me by this guy:
http://mywebpages.comcast.net/skgs/sk/Index.htm
He asked about what woods and design the guitar would be, what kind of amp I had and what styles of music and tones was I after. He did a very good job, wasn't expensive and offers a great warranty. There are other guys who do similar work, I just know this Stephen K. from that one sale. You do need to wait for a few weeks though, since it is custom.
At some point I'll find enough time to wind my own, part way there already.