Man, the consolidation efforts are really heating up. Just days after Cisco forked out a small fortune to acquire Pure Digital, HDD mainstay Western Digital has penned a check for $65 million in cold, hard cash in order to acquire SiliconSystems, Inc. Said outfit is an Aliso Viejo, California-based supplier of solid-state drives for the embedded systems market, and rather than wasting any more time falling behind in the SSD realm, WD figured it prudent to just buy the technology it needed to position itself as a