Cannot get mac to be seen by Windows (or printers) machines on network

[Mork]

Hello,

I cannot get my HP Printer or other machines on my network to see my MacBook Pro.

Here's what I've tried:

(Mac OS/X: Snow Leopard)

I enabled File Sharing with SMB enabled and tried both "Drop Box" folders and other folders I mark as Shared.

I disabled the Mac firewall.

I added "WORKGROUP" in the Mac's Network "WINS" section, which matches the other windows machines on the network.

I've disabled "Little Snitch" to make sure it wasn't blocking anything.

I can "ping" the Mac from the Windows machine and get successful pings back, but I can't see it in Network Neighborhood or map a drive using a drive path like \\MacBookPro

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Also, I have an HP 8500 ALL-IN-ONE printer, which I can print TO from the Mac, but not "Scan to Network folder ON the Mac". That is, when I try to set up the Mac's network folder on the HP Printer so it can save a scanned file on the Mac's file system, it just says it can't connect to the Mac.

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Clearly something is wrong, but with all the searching and reading I've done, I can't see what it is.

Any suggestions would be greatly appreciated.

Thanks.

- M