You can choose from an array of choices at ZDNet Downloads. However, there are two Windows Explorer replacements that I recommend. The first one is Singularity, a shareware program by Andrei Belogortseff at WinAbility. Singularity's interface consists of two vertical panes in which are displayed two easily navigable file lists. As you can imagine, this configuration makes it easy to copy and move files from one location on the hard drive to another.
Singularity has a bunch of other features that make it a top-notch file management program.
For example, you'll find features that give you the ability to create a new folder, rename a file, or instantly launch Find all by clicking buttons on the toolbar. The second Windows Explorer replacement that I recommend is called Windows Commander from Christian Ghisler. Basically, you can get the best of both worlds in one tool. Greg Shultz is a Senior Editor with Element K Journals. He writes the monthly tips and techniques journals, Inside Microsoft Windows 98 and Windows Professional.