Free Host-Based TN3270 Solution?

photozz asks: "Our company has got itself into a bind. We need to standardize on a TN3270 emulator for the Wintel boxes in our environment (primarily Win2K) The Linux/Unix guys are OK already )of course), unfortunately, the budget has run out. Our preferred solution would be something host based, but a client side solution would work. Sun has some Java stuff, but I figured if anyone would have a range of solutions, it would be this community. Anyone have ideas? If it matters, we are looking at 1000-2000 clients."