LifeinAsia - 1:06 am on Jun 28, 2013 (gmt 0)
You generally need a PhD to figure out Microsoft's licensing schemes...
It depends on how you're going to use it- internal connections only (probably need Server/CAL licensing) or connecting with a web server (probably need per processor licensing). If going with a per processor license, you could get a license for all 4 cores, or you could license fewer and configure SQL Server not to use the extra cores for DB tasks.
Licensing costs are a 1-time deal, not yearly.
Costs can vary depending on where you buy them.