Everything by Voidtools - Everything. Locate files and folders by name instantly. Everything. Small installation file. Clean and simple user interface.
DiskCatalogMaker - Simple, smart and fast disc management tool.
ANGRYsearch - Instant file search, showing results as you type.
abeMeda - abeMeda is a powerful and very fast disk cataloging tool, reading metadata like EXIF, IPTC, JPG, TIFF, MP3, AAC (iTunes)
SwiftSearch - SwiftSearch is a lightweight program whose purpose is to help you quickly find the files you need...
Virtual Volumes View - VVV uses a relational database to store its data.