Hi. I want to add two cents about the call from the man in the sexless marriage, which is that for me a huge part of what is lacking in my marriage is actually not just sex. My wife has had a really hard time giving me her intimate attention generally, not just sexually. Although the sex hasn't returned to our marriage, much of our intimacy has, and the key to making this happen was communication. Lots of communication. The hard kind, with crying and yelling and more crying.
Also, in straight married couples like mine, sex tends to be defined as always penis/vagina intercourse, but that actually other sex acts can be just as intimate. I'd prefer an enthusiastically given handjob to grudgingly accepted intercourse any day of the week.
I blog about sexless marriage at http://sexlessfather.wordpress.com
and the comment threads there have brought up some very interesting discussion.