Sounds kinky, huh? Well, not so much, but you might learn some useful stuff. The idea is that geeks explain to non-geeks how to set up their computers so that they are more secure. At the very least you could learn how to get a digital certificate and use secure email, but it would be even better to install Tor for anonymous browsing and OTR for encrypted chat. Even if you are relaxed about the government spying on us, if you are transmitting confidential information by email you really should not be using regular email which is about as confidential as a picture postcard.
My own preference is to install an open source operating system such as linux. The great advantage of doing this is that the source code can be examined and therefore it is simply impossible for the NSA to insert backdoors in the code and put deliberate weaknesses in the encryption libraries.
Assuming that a moderate level of security is required, it should be perfectly possible to install gnu pgp on Mac or Windows and get a good degree of security.
If you are reasonably comfortable installing software and can’t imagine yourself going to a crypto party, which does have a slightly 80’s whiff to it, you probably could just go to startssl.com and get yourself a free digital certificate and just install it in Outlook Express or equivalent and get a long way towards secure email. For the more adventurous, you could install Thunderbird which, on linux anyway, has a good wizard to walk you through using gnu pgp.