Free Disk Analyzer
http://www.extensoft.com/?p=free_disk_analyzer
Spike
http://lucidmac.com/products/spike

Looks like a handy addition to the toolkit

"Rails log file viewer."

log analyzer app for rails logs

Spike is a log file viewing & (if we’re being generous) analysis tool for Rails developers.

Desktop app for the Mac that shows Rails log files.

Analyze music for cycling

MixMeister BPM Analyzer is a free program you can use to determine the exact BPM (beats per minute) of any song. BPM Analyzer allows you to: * Calculate extremely accurate BPM counts for any song * Drag and drop music files from Windows Explorer * Display and sort files by Title, Artist, or BPM * Update ID3 tags in your music files with exact BPM information * Easily print BPM reports for your entire music collection * Export BPM counts for use in other programs * Free to use and distribute for non-commercial purposes