Recently I've been looking at ways to create grass for my scene, and I'd like to go beyond using texture maps and create actual 3d grass.  Namely, I'll need a field of regular grass approximately 100 by 100 feet with the camera about 30 feet away, tilted downwards about 10-30 degrees.  I'd like to explore free solutions, but I'm not opposed to something that I need to pay for.  Any ideas?  Thoughts? 

Edit: I found out about Digital Carvers' Guild "Anything grows"-does anyone know if I can use it to create a field that large using my machine (core 2 duo, 3 gb RAM)?