See my above post for the reason behind fentanyl being used. It depends on the patient as to whether you use fentanyl/midazolam, fentanyl/ketamine or fentanyl/etomidate.
Atropine is a good drug to have drawn up ready to go whenever suxamethonium is used in RSI. Suxamethonium (succinylcholine) is structurly similar to acetylcholine, so it is not unsual to see bradycardia following it's administration, which obviously affects the hemodynamics. It's not something that happens every time, but it is nice to be prepared for it. It used to be recommended that any pediatric patient recieving sux should get 20mcg/kg, under the assumption that you would notice a more profound effect from sux than in adults, but this has proven to not be necessary.
I have to ask: if you are carrying out drug assisted intubations, why on earth was this sort of thing not covered in your education?