While I was an undergraduate in math at Waterloo I typeset some of the notes for several of the PMATH algebra courses I took. They are available here.
Note that these notes are quite unofficial and I don't guarantee their correctness. However, if you do notice anything wrong or missing, I'd like to hear about it: please contact me.
Analytic Number Theory - PMATH 440
Algebraic Number Theory - PMATH 441
Noncommutative Algebra - PMATH 444 (incomplete)