Cindori
Disk Sensei
Trial versionSwiss army knife of Mac performance tools.
Mac
Kext Drop
FreeSuper-easy kext installer that just works.
Mac
Control Center
Trial versioniTunes/Spotify controller; CPU, RAM, and network monitor; Finder and system tweaks; and more.
Mac
Trim Enabler
FreeEnables TRIM under Snow Leopard or Lion for SSDs of any brand.
Mac