Appleinsider has heard that Apple will refresh its iMac line in the next few weeks. They cite unnamed sources who say unnamed upgrades will be coming. They do think that the iMacs will become thinner (why?) and "classier" (what?). They speculate that there will be Blu-Ray and some audio improvements (Dolby surround?) as well. Their source seems eerily similar to Wedge Partner’s report earlier this month.