Well I have been a co sleeper since Liam was very little. I did the sleep school/CC thing and HATED it. I dont like or believe in leaving a baby to cry, and I believe they cry for a reason and mothers also biologically have the innate instinct to pick up and comfort a crying baby. Little bubbas feel safe and secure with their mums, and personally I feel all this sleep training stuff is quite stressful and difficult and goes against our innate instincts as mothers. I feel sad that this method is pushed so much as the ONLY way

Having said that, co sleeping doesnt appeal to everyone, and there are plenty of other options which dont require you to leave a baby to cry. Try taking a look at these sites for gentle setling options

http://www.pinky-mychild.com
http://www.pantley.com/elizabeth/

your bubba is teething which will also make him more unsettled than usual too. Have you tried putting his cot in your room? Perhaps he may feel more secure and sleep better knowing he is close to you. Or DH could set up the cot as a side car next to his single bed (ie place the cot up against the bed with one side down or removed)

are we encouraging Brady to not sleep through or will he eventually sleep though in his cot?
In my opinion all bubs are different, just as all adults are different. Very few babies though actually "sleep through"-though those who have been trained not to expect anyone to come in and pick them up will sometimes go back to sleep on thier own.My own personal view is not many adults sleep through, (without waking at least once) so it may be unrealistic to expect it of a little baby.
My son hasnt been left to cry alone since he was 6 months old and I have also never made an issue of enforcing strict bedtimes and making him go to sleep before he is ready. I know this doesnt appeal to everyone, but my experience has been that going to bed is a positive experience for him rather than a battle. He will now at two years old, either take himself off to bed when ready, or come to me and ask to go "nigh nighs". Theres never a battle over sleep here at all-because I learnt to let go of expecting him to do a certain thing at a certain time, and rather went with the flow and followed his cues.

I would personally say, listen to your heart-listen to any advise you are given, but disgard if it doesnt feel right. Trust your innate instincts as a mother, and know that these are rarely wrong