Having had the phone 4-5 years, if you're on a plan, you're definitely out of contract by now. Who are you with right now?
There's only 5 nationwide companies : Sprint/Nextel, Verizon, AT&T, T-Mobile and Alltel, though Alltel will become Verizon soon. US Cellular is big but not everywhere (mainly rural areas), and Cricket is big on name and poor on coverage (no coverage in CT). Anyone else you see is either a local cellphone company (some still exist) or they're reselling another network. I don't know of any local cell phone companies in CT, I think that's Verizon territory anyway.
How many is a "few calls"? How occasional is the text? How is the budget?
If your usage really is that occasional and you want a trusted name then it's either Virgin Mobile or Tracfone. Virgin operates over Sprint's network, Tracfone's dependent on phone type. If you pick Virgin you'll probably want the Super Slice, or maybe the Switch_Back models. If you pick a Tracfone, the Motorola C261 is for you.
For something more "cutting edge" you could check out this new entrant:
http://www.totalcallmobile.com - Total Call Mobile. They're cheaper than Tracfone - $10 buys you 100 minutes ($0.10/min) or 200 ($0.05/text in or out) text messages that lasts for 90 days. They use Sprint's network. They only sell a handful of phones, all flip-phones. If you went this route you could pick up a Sprint compatible phone on ebay and connect with them.
If you're going with the big 4 and a traditional plan then any entry-level phone with a basic plan with maybe a text add-on will probably do you nicely. If you were going with Sprint, I'd say take the Samsung Rant (better than an LG Rumor IMO) and pair it with the most basic talk plan and ask to add on a text package to cover some texts for about $5 a month. If you work for a company that gets you discounts on Sprint service then upgrade to the next package because the basic basic package cannot be discounted, you'll more than double your minutes and since a lot of discounts are in the 10-15% range, that's enough to cover the cost of a text package.
Oh and I can answer that ipod question. That ipod is probably an ipod touch. In essence, it's an iphone without the phone part, but it has the gizmos to connect to the web wirelessly (wifi).
Hope this helps,
Mark.