Hi guys, First time posting here. After deciding to jump to the Mac World... just visited The apple store and the guy tells me that if I put RAM other than what apple's BTO options provide then the warranty is void if anything goes wrong with the iMac....is this true ? Has anybody experience problems with apple warranty with BYO RAM ? Any suggestions?... Has this policy been changed for the 2011 iMac's ? I would like to go with 4x 4gb kit on OWC. any advice is much appreciated Thank you.... Ram.