Be careful if you're shopping for Ibanez on ebay! Read this:
http://www.ibanez.com/support/counterfeits.asp
I also have an Artcore. I was very underwhelmed by the pickups and replaced them with GFS Dream 90s. Huge improvement. I love the sound of growly P90s in semi-hollow bodies. Wouldn't do that with a big ol' jazz box though.
I compared them with Epiphones and a few others in the US$300-400 range, and the Iby's seemed best overall. I especially like the feel if the Artcore necks.