While there are some reviews here, Projector Central and Projector Reviews are both 'the' websites to go to for some serious review reading without the bias of some other sites.
At this time, BenQ has the W1070 and a few other models and Optoma has the HD25 and a few other models which are really strong performers. They have really made headlines for being very well build overall units.
Contrast ratios are meaningless from most manufacturers because... they lie. They aren't following any true standard to report their contrast numbers so it's just all meaningless junk. So, the reviews hold the key.
DLP has a big issue, IMO, because as you spend more, you get very little from DLP. They don't have a huge upgrade in image quality at $1,500 or $2,500, so for $1,000ish, you get the most quality from the entry level DLP units.
If you need lens shift, a long zoom lens, or other features (that you said you don't need), then DLP leaves you out in the cold for the most part at sub $3,000 prices. It's actually ridiculous! But, that's where LCD comes into play, and models like the Panasonic AE8000 and the Epson 5030 are well reviewed and offer a great deal of flexibility in placement while improving upon the black levels and contrast which the entry level DLP models have been putting out.
But, those models start at $2,000 and you are already happy with your DLP model.
The real winner in terms of quality, in my experience, comes from LCoS, specifically, the JVC RS46 projector (about $3,000). For the money, there is no projector with better 2D image quality, black level, or overall image 'pop'. It delivers all of it, and is ideally suited for a dedicated theater space. Dark room, dark paint, dark ceiling, dark carpet, 120" screen or less.
The cheaper DLPs are very good, but don't match up to the JVC, but for $1,000, they are pretty much impossible to beat.
I use the BenQ W1070 on a 161" screen and enjoy it, but when (if) I ever get around to finishing my basement and installing a true home theater, I will have my sights set on the JVC LCoS projectors at that time. I think the extra money is worth it.