Hi Techexamers

Im hoping you can help me out with a bit of advice.
First off a bit about me. I am 30, i have 5 years experience as a 1st/2nd line Desktop Technician supporting XP and Win7. I have a CompTia A+ which was obtained quite a while back and i am currently studying ITIL Foundation (my company wanted me to do it).I would like to take my career to the next level hopefully with some help from MS Certifications.
I am very keen on SharePoint and Lync so becoming a specialist in one of these areas would be my end goal however i realise i am quite a distance from that goal. Another issue i have is that my current role doesn't give me any exposure to working with or on servers so unfortunately i have no experience in this area. I know that i need to have a firm understanding of server technologies to reach my goal therefore i have some questions regarding the MCSA Server 2012 certification which im hoping you guys can help me with..
- Given my current role and lack of server experience would this certification be worth pursuing? or would you guys recommend any requisites before undertaking the MCSA? MTA maybe
- I have heard that alot of the 2012 material "expects" you to have knowledge of server 2008? Does anybody know if this is true? if so would you recommend pursuing 2008 instead?
Any help is much appreciated, I would also be really interested to here from anybody who has been in my current position and has followed this path.
Cheers
Simon