I Fly 60 and 90 size Nitro Planes
For the engines you got good choices. For servos I usually go for TowerPro Servos for rudder and throttle, for Ailerons and elevator i go for Futaba S3001 or S3003 Servos. They work great
For a cheap but good setup you can always use Towerpro Servos. I never had troubles with them or with Futaba Servos.
For engines you can go for ASP, OS or what ever brand you can afford and put in as per your choice.
Cheers
Ali