Glad to answer.
I consider Server+ to be very worthwhile considering my present job, although I didn't have the job, or any job, before I got the cert.
To explain, I presently work in a communications center for a large hospital. My work station is in a room adjacent to the server room--4 rows of big racks with lots of servers. With server+ I went into this job at least knowing about storage-NAS & SAN, SCSI, RAID, redundancy, reliability, advanced hardware(some call Server+ "advanced A+), UPSs(ours are BIG), physical security, network security, environmental factors, fire protection systems, and more.
Recently got a taste of the environmental safety when I walked into the server room and found that our 68-degree environment was up to 78-degrees and climbing! We immediately contacted engineering and found that they had shut down a large breaker panel for 20 minutes and had not notified us of a scheduled down-time for our AC. When they fired up the AC again, we had something smelly and smokey looking coming out of AC vents! We did call a code red(fire) but we didn't activate the fire suppresant system. Turned out it wasn't smoke but steam caused by condensation in the AC system somewhere.
Environment is just one example. We have to reboot servers all the time--hard to believe! I'm getting the great education my mom always wanted me to get--the hard way! However, if it wasn't for my studies for Server+, I can talk to my trainers, Administrators, and IT engineers intelligently about these matters.
Also, the combined A+ and Network+ put me on the troubleshooter roster. I can check out network connections, go out on the floor to troubleshoot work stations and printers.
My study methods included my own little home network and a short education in M$ peer-to-peer and domain based networks. Also, Server+ study of different NOSs fit right into my work--we have W2k, Novell, NT4, Windows 3.11, W95, UNIX, and OpenVMS(which I'm just now trying to learn something about).
Trying now to get started on MCSA track. We use W2k Active Directory--it's great. Now, if I could just figure out how they planned all that hierarchy.
Server+ is not a popular cert. Personally, I don't understand why. It doesn't make you an MCSA, but because it's rather generic in its approach
I don't think you can go wrong with it. From there you can really understand the importance of every piece of equipment around you.
Also, my experience was the same as most others who take the exam--It was very difficult. You do have to prepare. On the other hand I'd say that someone who has spent a lot of time in a server room will have a big head start over someone with a small amount of such experience.
Well, I've ramble on long enough. Hope this helps.
This is your first job in I.T? Did you get all those certs first?
I believe that I used a sample download of prep logic on Network+. Didn't get the paid-for one. Personally, particularly on Server+, I'd go for Transcenders.
Something else, since Server+ is not a popular exam, you can go to half.com and find some reasonable prices on Server+ study guides. Most of these study guides have their own brand of exam software on CD.
I bought 5 study guides total and read about 3-1/2 of them and took all the practice exams. Believe it or not, the hardest of those exams was from Server+ for Dummies! I don't know where they came from, but it will keep you humble.
So I did the practice exams from the study guides, and then got the Transcenders and that really showed me where I needed review, and, of course, the review is supplied right with the correct answers.
Best of luck.