Answering some of the questions "I have no idea why SanjeevP would randomly change to a server OS?".
I did not randomly switch to SBS2011. I have a main office with 8 computers and an office in second location with 5 computers. AC data is in main office and we remote from satellite office to main office to work in AC. So Reception desk in second office accesses Reception in main office, Exam Room 1 remotes into Exam Room 1 computer and so on so forth. SBS2011 remote workspace allows us remote into multiple computers in main office and work on AC. WIndows 2011 RWW is way faster than LogMeIn or even just RDP.
I had no need for Exchange or Sharepoint and could have gone with SBS2011 Essential but Standard was not a whole lot more expensive on Dell T410 server. And I still do not use Microsoft Exchange and Sharepoint.
To give you one example of added complexity with SBS2011: all of a sudden one day AC on clients could not access the AC data on server and stopped working. AC support found out that WIndows SBS2011 server software security update had changed the permissions and they had to manually change the permissions back on the server to get AC working on client computers. But imagine the interruption - waiting room full of patients and you are on phone with AC tying to get it working!
Computers, and server and network are just tools to allow me to do my job as a physician. I would like to set these tools up,then forget about them and just go about doing medical decision making. But having a Server forces me to spend more time on computers and distracts me from clinical work and decision making.
So coming back to the original point I was making: unless you need an advantage from server - like accessing multiple computers from a second location - stay with Peer to Peer network, irrespective of what Bert's IT guy says. You are not managing 50 or 100 desktops - where I can see the advantage of centralized management.
Going from Dell Inspiron 530 with i5 and 4GB RAM to DellT410 server with 24 GB RAM and Xeon 3570 processor, I got little, if at all speed advantage.
All said, these forums are immensely helpful in making AC easier to use, thanks to all the people who donate their valuable time. If you are going to install SBS2011, make sure to watch Sandeep's videos, they are very useful. Sandeep also helped me in installing secure certificate from GoDaddy. Reading these discussions informed me that remoting from multiple computers will be far easier with SBS2011 and that is the only reason for me to install SBS2011.
