Making a server...best software?

I have an interent server, but I'm planning on making it into a file server, FTP and HTML server.  I'm just wondering what the best software is to do this?  I've got apache for windows running now, and that should work for HTML, but what can I use for FTP?  As for a file server, what all does Windows 2000 prof. come with?  Will I need 2000 server.

Here are the specs on the computer...
Intel Pentium 200MHz w/ MMX
64M RAM(EDO, but also has some SD RAM slots)
1.8G and 3.2G HDs
CD ROM
Decent video card(got many more if I need to upgrade)

(There is also a problem with the processor...it only runs at 166MHz.  I tried every combination possible, but I could only get it to 166...  I have another processor that runs at 200MHz for sure, but I can't remember if it has MMX.  So I'll try it soon enough, and just put the fastest one with MMX in it...)