Finished it tonight, brilliant game - i loved every minute of it. Didn't do all the side missons but i did most of the ones around the citadel, i started trying to do them, but i really wanted to finish the game so i decided to stop doing them all. One thing i really liked was being able to choose what to say in the conversations - especially when i could choose the option to give me more renegade points. *small spoiler* for example, when you come back and the Normandy gets grounded, when the news reporter talked to me i ended up choosing to "Shut her up" which consisted of a swift punch in the face...
Had quite a lot of money near the end as i never bought anything, i just hacked, decrypted or found all my weapons, upgrades and armour.
Very good game, may end up playing it through again at some point, but not for a while