I've added a whole load on Islam to "Prayer to God in Christianity and Islam: But Praying is Useless and Satanic" by Vexen Crabtree (2005), concentrating purely on the Qur'an (for now), and commenting on:
Qur'an 3:43: Women in Prayer: No Segregation
Qur'an 3:191-4: Praying Posture (standing, sitting or laying)
Qur'an 7:55: Pray With Humility and in Secret (same as Christian Bible)
Qur'an 52:48-49, 73:1-7: Prayer (Timings) at Night
These are pretty much all the Qur'anic says about prayer.