Other World Computing (OWC) on Friday began offering FB-DIMM (Fully Buffered DIMM) 667MHz DDR2 RAM upgrade kits for Appleis new Mac Pro. Prices start at US$559 for a matched pair of two 1GB modules and end at $4,759 for a set of eight 2GB modules. OWC also offers rebates of $140 and $350 for 1GB and 2GB sets of factory-installed RAM.