Sun Microsystems Inc is cooking up an integration division that will be based in Chelmsford, Massachusetts, home of its personal computer and local network-to-Unix communications planet, SunSelect. Sun is keen to cash on the success that companies like Digital Equipment Corp, Hewlett-Packard Co and IBM Corp have had in systems integration consulting. The unit will focus on helping Sun customers to build networks of multivendor systems and will use technology from other Sun divisions plus other network and integration technologies that it will buy in OEM from other vendors. It means that Sun will pass on less integration custom to its existing partners like Andersen Consulting and Electronic Data Systems Corp.