craigslist, you can catch a guy selling his setup usually
This. I watch craigslist regularly looking for stuff. Last week there was a guy trying to sell all of his equipment fast because he was moving overseas and wasn't going to have room for it. He had all grain equipment, refrigerators for fermenting and kegging, and all kinds of kegging equipment. The whole she-bang. He wanted $600 for the whole thing. Nobody jumped on it and by the end of the week he was only asking $300. I thought about buying it but there really wasn't much I could have used.
If you're already doing extract then all you really need is a mash tun. I purchased a 10G rubbermaid cooler off of the internet and replaced the spigot with a weldless ball valve and bazooka assembly. You can do this for $60 - $70 depending on the cost of the cooler. You can purchase the smaller 5G cooler, but it gets a bit tight in space with larger gravity beers.
Thanks for all the help and advise.... I like the link that was posted about the biag method cool stuff. I also liked the posts on making a mash out of a cooler. Do you not need a second for a hot liquor tank for the sparge? Thanks again for the advise.
If I could go back in time and do it again; I would go with Keggel's, get a good temp probe, skip the IC and go with a plate chiller. Doing that would have saved me a lot of money/pain, but how was I to know? And getting the kegs took some time.