If you were at last Sunday's MacGroup meeting, you got to see Terry White demonstrating some of his favorite utilities. And if you weren't at the meeting it will eventually show up on MacGroup TV. A couple of the utilities Terry showed, WhatSize (for finding out what's using up all your disk space) and Transmit (and FTP program) are excellent programs, but they aren't free ($12.99 and $34.00 respectively).
Now, they aren't outrageously priced, but sometimes you just don't have the scratch available. So I thought you might be interested in a couple of free alternatives.
Back on March 24,2010, I wrote about OmniDiskSweeper, which has pretty much the same functionality as WhatSize, but it's free, It used to be a paid app, but for whatever reason the Omni Group decided to make it available as freeware.
For an FTP client, you can try out Filezilla. There are versions for OS X, Unix, Linux, and Windows, so if you have to work with different operating systems, you can use a program on each with the same look, feel and commands. You can queue up multiple transfers and right-click files to open them in their default programs. You can also drag and drop files around.
It doesn't have all the features of Transmit, but again, for free, the price is right. It does let you see the actual commands passed back and forth, which can be very helpful when trying to figure out why you can't connect to a server.