Good version of Linux for Low-End Hardware

I have a PenIII laptop thats 500 Mhz that i would like to put to some use. Im looking for a simple version of linux that i can install on it but still windows-like in user interface. can anyone recommend a good version of linux that i can run on this computer?

TinyMe a stripped down PCLOS distro or Puppy Linux.

Ubuntu without the pretty eye candy runs quite well in low-end machines.

if you still have doubts, you can try xubuntu, it's designed for older pcs.

is perfect for you:
http://www.blagblagblag.org/

PCLinuxOS is another good choice for low end hardware I was running it on a PIII laptop with no problems, the only thing I had trouble configuring was the addon WiFi card but that wasn't a major, it works very well for what you need.

try dsl "damn small linux"

I would also suggest trying Xubuntu. It's lighter than Ubuntu but still looks nice by default and has a lot of Ubuntu's features.

Would it support pfsense, for a low-end pc load-balance router?

i think PCLinuxOS is good for low-end hardware