I agree with thirtyclean, as far as MoRich stuff there's nobody better in the area than Will Clark out at Bowler's ER. He's also really good with Track stuff as well as he drills and throws a lot of their stuff.
As for Ebonite, Hammer, Storm, and Brunswick, go to Rich Blake at Chicago Bowler's Store inside of Brunswick Zone Niles. Rich (who co-owns the shop with Jeff Ash, thirtyclean and I also work alongside both of them) is a Hammer staffer but is very knowledgable about all brands of equipment. At the shop we carry mostly Hammer, Ebonite, and Storm with a little bit of Brunswick thrown in. As said before, Rich throws all Hammer, Jeff throws some Storm, I throw all Track, and Dan (thirtyclean) throws a good mix of Dynothane, Storm, Roto-Grip, etc. We cover all bases there except for MoRich and Visionary. All-in-all a great shop, one I would recommend even if I didn't work there.
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Andrew Loose
"Evolutionary. Revolutionary."