1. If you need a song in a somber mood and a (sorry for saying) EPIC solo, go for Comfortably Numb.
2. Rush is quite good (their latest compilation called "Gold" is really good if you haven't listen to it). I've been on a binge music listening spree on Oasis because of the realization of them disbanding of them and it is finally hitting me thanks to Youtube.
3, The album is kinda (like almost a year old) new is OK Go's "It Too Shall Pass" especially both videos posted of the song.
4. And lastly, The Clash's album "London Calling" is very good because of the variation of style in each song almost like what the Blue Album consisted of.
i totally agree with all those Beatles, Queen, Led Zeppelin recommendations. every album of this bands can be the source of inspiration.
i'd like to bring some national colour (at least unenglishs-peaking band) and advise you russian band "Сплин"
Pink Floyd is awesome they were my first love in terms of bands and Roger Waters can be heartfelt even though he was kinda a d*** but yeah the Wish You Were Here is awesome and the songs about syd barrett are really heartfelt they're about losing your best friend final cut is defintly the most wordy album in terms as it proably has the most words but thats more of a Waters' solo album not very reflective of all of pink floyd but good writing i think
I think you should really listen to Third Eye Blind in general, specifically the Blue album, the songwriting is tremendous. It's full of catchy chorus' which will give you the pop sound your looking for in your lyrics. The lyrics are also very emotional and clever at the same time, overall really great songwriting.
When thinking about it overnight, to me I love a good drum/guitar riff that's not particularly new, but different than your generic rock band sound of right now becomes great later. Remember music is a pendulum so what's not good now will be great later in 5 to 10 years.