I have an Epiphone Les Paul Standard Model with alnico humbuckers for both the bridge and the neck. Since this isn't my primary guitar, I feel a little at liberty to tinker with it; before I do that, though, I want to know where I could find more information on humbucker manufacturers/sellers/models, and which attributes to look for. I've played on guitars with humbuckers before, but this is the first time I've endeavored to customize a guitar myself.