Surprise: Tom Clancy is still a hot commodity. His Rainbow Six save-the-world games appear on three best-seller lists -- two titles sit on both the top CD-ROMs and PC games charts, and the book version spent weeks on the New York Times paperback-fiction list. But he's not taking over the world just yet; with Microsoft product in high places (Nos. 2, 4, 14, 19, and 20 of the top CD-ROMs), Bill Gates still has the upper hand.

TOP 20 CD-ROMS LAST MONTH

1 COMMAND & CONQUER 2: TIBERIAN SUN Electronic Arts, PC 3 2 MICROSOFT WINDOWS 98 2ND EDITION UPGRADE Microsoft, PC 1 3 QUICKEN DELUXE Intuit, PC 19 4 MICROSOFT ENCARTA ENCYCLOPEDIA Microsoft, PC 11 5 VIRUSSCAN 4.0 CLASSIC Network Associates, PC -- 6 ROLLER COASTER TYCOON Hasbro Interactive, PC 6 7 QUICKEN Intuit, PC -- 8 PRINTMASTER PREMIER 8.0 Mattel Media, PC 15 9 ARTHUR'S THINKING GAMES Mattel Media, PC -- 10 TOM CLANCY'S RAINBOW SIX GOLD EDITION Red Storm, PC 5 11 WORLD BOOK 2000 IBM, PC -- 12 TOM CLANCY'S RAINBOW SIX ROGUE SPEAR Red Storm, PC -- 13 MADDEN NFL 2000 Electronic Arts, PC -- 14 MICROSOFT OFFICE 2000 UPGRADE Microsoft, PC 8 15 NORTON ANTIVIRUS 2000 6.0 Symantec, PC -- 16 JUMPSTART 1ST GRADE Havas Interactive, PC -- 17 STARCRAFT Havas Interactive, PC and Mac 9 18 VIRUSSCAN 4.0 DELUXE Network Associates, PC -- 19 MICROSOFT MONEY Microsoft, PC -- 20 MICROSOFT AGE OF EMPIRES II: THE AGE OF KINGS Microsoft, PC --

TOP 5 PC GAMES

1 COMMAND & CONQUER 2: TIBERIAN SUN Electronic Arts 1 2 ROLLER COASTER TYCOON Hasbro Interactive 3 3 TOM CLANCY'S RAINBOW SIX GOLD EDITION Red Storm 2 4 TOM CLANCY'S RAINBOW SIX ROGUE SPEAR Red Storm -- 5 MADDEN NFL 2000 Electronic Arts