I didn't get a static ip either. Your linksys router most likely has a tab in the setup page called DDNS. This allows you to use a service similar to No-IP that electron just described. They have three options, but I have only tried DynDNS. Basically, go to Dyndns.com and set up a free account, and then put the account information into the router in the DDNS section. The router will tell dyndns whenever your IP address changes, and you don't have to install any software on your computer (you might have to upgrade the firmware for your router, but that is pretty easy). Plus they have pretty cool domain names to choose from such as yourname.kicks-ass.org
The center software only lets you specify an IP address, so in the rare event that your address changes, you can just go to dyndns.com and look up what the new one is.
The center software only lets you specify an IP address, so in the rare event that your address changes, you can just go to dyndns.com and look up what the new one is.