Re: Training/exercises book
Not a bullseye, but Ikeda Sensei's "Za" and "Irimi" videos have a huge amount of exercises and drills. More excesses can be found on Amdur Sensei and Waite Sensei's Ukemi videos. I have read A LOT of Aikido books, and never found one that is better at teaching training than philosophy. If you aren't married to Aikido books, check out Joyce Vedral's "Top Shape" for a lot of exercises which can complement your dojo training.