Father and Son - Cat Stevens. Reminds me of when I was young, and in my eyes, the best part of my life so far.
Edit: Also, Himerus and Eros - The Spill Canvas. That song helped me through a load of shit with friends and stuff.
I'd avoid the Heatsink ones, mine broke within the first day of using it.. I just use the attachments from the Heatsink one on a syringe i got from my local vet now.
Mine is fairly loud. I've heard that the Adamant ones are the best ones, so i'd advise one of them if you must. I must admit, i'd much rather have a profile though,
Just anyones that clear the end of the axel, I got mine from the local DIY shop for 50p. just so that the spacer touches the frame when you do the bolts up, or in my case, when they hit the chain tugs.