Antivirus / anti-spyware applications for my workplace
I am an IT guy for a graduate school in Pasadena CA, and recently we have experienced dissatisfaction and nagging doubts about our antivirus / antispyware programs, and are looking to make a change.
We are not a huge school, but my department supports about 550 PCs (and almost as many Macs, but that does not enter into this particular discussion). Here is where we stand-
Antivirus: We used to use Symantec, then we switched to LANDesk (TOTAL disaster, no virus could do as much damage to productivity as LANDesk has already done). We could switch back to Symantec (I believe there is a paid for corporate license we could buy that might be more aggressive than our past setup), but I'm just not sure they are the most effective anymore. Also, last time I checked their anti-spyware portion was not up to par.
Anti-spyware: We've only ever had free-ware for this. Its been all SpyBot S&D up to this point, but once again I get the feeling they have lost relevance / effectiveness. AVG is out because their installs always pop up boxes making it sound like you need to purchase the product, which would confuse our userbase (and cause them all to call me).
Here's where you guys come in: What is an effective antivirus client for medium size business that is affordable? How bout for spyware (free-ware is always great, but we would consider a paid product as well). For bonus points, are Symantec and Spybot as out of touch as I think they are?