What are some good HIDS?

Im looking for a few HIDS to test out on my home system(s).
Linux and Windows. Perferably cheap or even better, free.
Thanks for any help.

I've got some Win 98 SE to sell, but I'm in Australia, sorry.

Stephenmg,

The following link has a great discussion about hids and below it are some Linux and Windows versions.

http://www.antionline.com/showthread...hreadid=255727

Linux:
Os-Hids
www.ossec.net/oshids/

NetSpecter HIDS
http://www.netsecuretech.com/english...ro_HIDS_01.asp

Windows:
Secuplat HIDS for NT
http://www.inzen.com/eng/products/HI..._HIDSNT_01.asp

www.intrusion.com/products/hids.asp

More can be found using www.google.com

TripWire has remained one of the best HIDS around. You can still get it "free" for Linux but they have gone commercial for pretty much everythine else.

Thanks Relyt, MsMittens for the links, they are helpful.