I just went to the photo store and overpaid for some Smith Victor 250w phtotfloods (3200K). I have a scene in a church and I dont want to light the whole place up, but I do want to get nice warm lighting on the 2 main characters. Now should I bounce these open faced lights onto the subjects using some warm reflectors or should I use a warm umbrella? Also, if I get a dimmer and am not using the bulbs at 100% intensity (lets say I go down to about 60%), does the color temperture change, or does that not make a difference? Thanks