I agree 100% with bkay's info. Shooting outdoors is such a crap shoot, if you shoot in full sunlight, the quilt gets washed out and you get shadows. If you shoot in shade or cloudy conditions, you end up with bluish tones. I've found the best conditions are bright overcast clouds, but I still get bluish tones. I've found sunset is a good time, but I still get shadows, and the light is more gold. If you have Photoshop or a similar photo editor, you can compensate for this, but a lot of people don't.
I've used Holly Knott's setup (link in bkay's post above) several times with success. It's a very affordable option.