Janis Frame is a pusher. For Denver book collectors, her spacious Book Buffs Ltd. is as addictive as a line of coke. You can almost hear shoppers slapping their veins and muttering, "Just one more, man," as they browse the shelves of fine first editions, limited editions and small-press releases. The store, which recently moved from the Golden Triangle to a new spot on South Pearl, boasts everything from obscure chapbooks to modern signed firsts, such as Jonathan Franzen's The Corrections -- and it's all impeccably organized and alphabetized. Each volume has its own siren song, luring readers to caress its cover, scan its pages, stroke its spine. Just one more, man.