A 1000 lumen projector will only give you about 10 footlamberts on a 12-foot wide screen, so you may want to consider a more expensive projector that uses 3 DMDs and an arc light source.

A basic 800 lumen projector these days fetches about $3000, and a nice 1800-2000 lumen jobber (which is likely what you'll need) can quickly run up to $6000. You should pay close attention to the manufacturer's purported contrast ratio.

Also look for native projector resolution, you'll want something at least 1024x768. A lot of projectors advertise that they can accept XGA and SXGA signals, but they are actually using a scan conversion which can be quite lossy. You'll also want a line doubler or video scaler ($1500-$3000 that de-interlaces NTSC 525 line video into a much higher progressive scan rate.

Since you watch 35mm at home, you probably won't be very happy. I've seen well done systems for $10,000 that rival 16mm. Any increase in price beyond here is generally an increase only in lumens. Your local systems integration company should be willing to bring a few models to your home for a side-by-side demonstration.

This link provides an online comparision between many makes and models:
http://www.projectorpeople.com/projectors/projector_comparisons.asp