C.,
Ask yourself (not the experts or the baby books) the following questions and follow your instincts:
1. Does it make sense that a 7 month old who can't do anything independently for himself like bathing, dressing, moving, eating, etc., should be expected to sleep "independently"?
2. Does it make sense that the cry-it-out method so highly touted in most circles teaches the baby anything other than the plain and simple message "you can cry all you want, but I'm not going to come, so you might as well not bother me"?
3. Does it make sense that Americans are deluded into thinking that babies should sleep independently and quietly down the hall, out of our hair, when most other countries around the world follow a cultural standard of co-sleeping in one form or another, and have for centuries?
4. Does it feel right or good to you that when you follow your instincts, you are made to feel by society that you are an incompetent mother?
5. Does it make sense that the societal "norm" requires the expenditure of your hard earned dollars on all sorts of "expert" advice books and silly gadgets to make the baby "perform" the way the advertising and marketing efforts of the baby profiteers have succeeded in brainwashing us mothers into thinking they should behave?
6. Does it make sense that it is "normal" for kids to sleep independently, when an informal survey of most families reveals the practical truth: that most kids need nighttime parenting and the kids end up crashing somewhere near mom and dad much of the time, often up until the age of 10 or so, because that's the only way anyone can get any sleep?
Follow your instincts. You also might try "The No Cry Sleep Solution" by Elizabeth Pantley. Good luck!