1) I am thinking about adding RSS (news mainly) feeds to a site. Would it be better to add popular news from the big boys in media and use their name is a authority to try and make my site look more of a authority or to use little known, little publicised feeds that probably not many people will have and therefore cause more of a 'oh whats that story?' and almost a reaction of 'well ill have to remember that site they had good links to stories ive never seen before and are just my cup of tea.'
1: Use what is appropriate to your audience.. There are only a few places where real news originates.. Also consider that the big guys (AP, Reuters, All Headline News, UPI, DPA, AFP) all got that way because they are credible and trusted. Take your chances if you want but Caveat Emptor.... There are plenty of reputable small sources but all it takes is one issue to reflect upon you.
2: JS is okay.. feed2js especially free ones are aften ignored or so highly loaded that your page is affected.