Hey my name is Ryan, I am 20 years old and I live in Denver Colorado right now but I'm planning on moving to NH ASAP.
Awesome, & welcome!

I recently moved from CA.
A few questions I have:
-Are there a lot of call center jobs in NH?
82, according to indeed:
http://www.indeed.com/jobs?q=%22call+center%22&l=NH-Are there other entry level jobs that pay decently?
Lots
-Are there any other people around my age in NH for the FSP?
Many -- and even more in the 25-35 range.
-What is the nicest area to live in? I'm looking for somewhat low population maybe no less than 10,000 people that gives you all the big city advantages with the low population.
Here's a list of NH cities and towns by population:
http://en.wikipedia.org/wiki/New_Hampshire_communities_by_populationI wouldn't recommend Berlin, from what I hear. Other than that, these are all nice towns as far as I know. Portsmouth area would certainly be a top recommendation. Keene's a nice area too. Nashua and Manch are
relatively more bigcityish. Anywhere in the southern part of the state is within an hour or two of boston, if you need a real big city fix (nashua and seabrook are more like 45mins, if no traffic).
I'd recommend visiting different places, to see what you like. Also, you might want to leave your options somewhat open, to see where you find a good job.
I am planning on moving to NH right around PorcFest '13 and I want to introduce my dad to these ideas(he's a neo-conservative) so I am trying to convince him to go to PorcFest '12 with me this summer.
I'd also recommend Liberty Forum for your dad. It's more of a "hotel convention" style event, with speakers on various different topics. PorcFest certainly has speaking events, but I'd say it's got more of a camping/festival atmosphere -- lots of food vendors, social events, concerts, some partying, etc.
Of course, the drawback is that Liberty Forum is in February, while Porcfest is in June.
Thanks!
You're welcome!