The tungsten lights would be a good idea too. You can set up the shot and get the look right without needing a meter. Just use your camera's meter. You can set your white balance to tungsten for them or use a custom setting. I looked up the Rebel and it does have a custom white balance setup feature. What you can do is setup your hot lights and hold 3 paper coffee filters layered over the lens when you take the reading. It will give you a perfect WB setting to use with your lights in the tent. It does the same thing the $130. Expo Disk( http://www.expodisc.com/) does at a cheaper price. I just got the latest B & H Photo catalog and noticed they have a lot of reasonably priced hot light setups that would work well for your tent. Tungsten lights are what come with most of the tent kits from what I see on the web. Go to the B&H Photo site (http://www.bhphotovideo.com/)and look up continuous lighting. Two or three 750watt or 1000 watt lights should do you fine.

With these lights you might want to put the camera on program mode and see what it chooses as it's settings. Then you can go back on manual and bracket up and down to see what you get and experiment until you like what you see. That way you can get by without a meter for a while and have some pretty good results. That's the place to adjust your EV to get the best shot.

I hope I didn't get to confusing here but if you have any more questions or a clearer explaination feel free to ask. I do have a tendency to ramble a bit.