Thanks for all the suggestions. From all I have seen the The Expectant Dad's Handbook: All you need to know about pregnancy, birth and beyond by Dean Beaumont looks like the most suitable. I intend to read it too.
I find babycentre an excellent source of information but since I work behind the computer all day everyday I like to turn it off and get an actual book in my hands at the end of the day-for that, a trip to a bookshop that has a cafe is my plan (to find a book for me)
InFrance thanks for the additional tips, very useful, I haven't even got that far yet (thinking about birth and breastfeeding..)but good point-will check these out.
In summary here is all others that have been suggested here:
The Expectant Dad's Survival Guide: Everything You Need to Know had been mentioned here few times but the negative reviews (constructive and very specific) on Amazon had put me off (as well as the title-since when is fatherhood about survival? Isn't it more about being excited and happy and looking for genuine intelligent advise???-it's this kind of jokey writing style that I find annoying but it might suit others).
Pregnancy For Men: The whole nine months by Mark Woods (again the Amazon reviews from men suggest the tone of the book assumes the reader to be a bit immature..some might be able to ignore this and just take out the facts though)
Other books suggested here:
Fantastic First-Time Father (50 Things You Really Need to Know) by Tim Mungeam
Baby Manual by Ian Banks
Bumpology by Linda Geddes (not spec. for men)
Birth Skills book by Juju Sundin (not spec. for men)
Womanly Art of Breastfeeding La Leche League International and Diane Wiessinger (not spec. for men)
My Pregnancy 2014: The latest research and advice on your pregnancy and birth (not spec. for men)