If you want to hook your laptop to your TV and use it as a media player you'll want premium, otherwise basic should be fine.
If your sharing photos I'm assuming you will be editing so if you have Vista you'll want 3gb of ram. If you find an XP machine 2gb would be fine.
I would recommend duel core since the cost now between single and duel is minimal. The performance difference between Intel and AMD is so minimal don't worry about it. (I know you didn't ask, but it comes up a lot).
Netbooks aren't as flexible as regular laptops so given what you want to do I would stay away. Plus you pay a premium for the size.
Several people that I work with have gotten refurbs from Dell and were happy and got a decent deal. Just be sure you have a good warranty and make sure if something goes wrong you aren't paying shipping to send it back for service.
Personally I like dealnews.com and techbargains.com. Woot and yugster also will have some great buys, but at one product a day it's hit or miss.
I discourage people from buying Sony laptops. Having worked on every major brand they TEND to be the worst for access to drives and other commonly replaced parts. They also tend to favor proprietary parts.
Final note, if you ask 10 computer geeks the same question your likely to get 10 different answers and everyone is convinced theirs is the right one
