Don't get me wrong, a VLSD is WAY better than having no LSD, but most people find a clutch type to be more predictable. That being said, I wouldn't turn down a free one, but there are other options out there. Here's one I found recently, not a bad price either....
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&ih=010&sspagename=STRK%3AMEWA%3AIT&viewitem=&item=200089159349&rd=1,1