I currently have a Cisco 3550-12G. This switch has at total of 12 ports, 10 of which are fiber GBIC ports. What type of switch do you recommending me replacing this with? I know most of the switches now are SFP based, which is fine, I'll just have to purchase an adapter for the end of the fiber. The only cisco switch I see on Cisco's website that I think can replace it, is a WS-C3750X-12S-S. From what I'm reading it has 12 SFP ports. Is there any other solutions from cisco or is this it. Thanks.