So many visiting DJs, so little time. Here's a roundup of the special guest spinners who will be inside the DJ booths at some of your finer downtown dance dives this week. Hyperia (2001 Commerce) will have two headliners performing Friday, December 14: West Coast DJ/promoter Marcus Wyatt and Chicago producer/remixer Mark Grant. Another Chicago favorite will be in town Saturday, December 15: House music lord Jesse Saunders is scheduled to do a four-hour set (which will also be recorded for an upcoming double CD) at Space (799 St. Emanuel). On Wednesday, December 19, you may have to choose between checking out either British breakbeater LTJ Bukem, back over at Hyperia, or San Fran spin man DJ Dan, who'll be providing the soundtrack for the racy, raucous proceedings at "Trippin' the Love" at Rich's (2401 San Jacinto).