I've got a Telex M-540. I believe they make one model at a lower cost but couldn't find it. As a former A-V salesman, I'd bet you could get a great price in a bid situation. I know Telex caters to the school market. Ron/Memphis (From some website) Telex makes an inexpensive USB. Telex M-540 USB Desktop Computer Microphone. This microphone's focused pick-up pattern significantly reduces background noise, improving audio quality for all voice applications. In contrast, ordinary omni-directional microphones pick up sounds all around, including unwanted background noise. Features: Unidirectional microphone reduces background noise, Second Generation USB Digital Signal Processing, Fully adjustable, patented design for greatest versatility, The original and authentic PC microphone – made better. Specifications: Microphone Unidirectional electret. Cord 8.0 ft. (2.43 m) Plug USB Series A plug. System Requirements: Microsoft Windows 98, Windows Me, Windows 2000, Windows XP; Apple Mac OS 9.1, USB port. Telex M-540 USB Desktop Computer Microphone. Part Number: MIC-M-540 $23.99