RAF Aircraft in FSX

Hello all,

I am wondering what little RAF gems people have found out there for FSX that are free, any era, I have Tonka, Harrier, Hurricane IID + Sea Hurricane (looking for other mk's), Sopwith Snipe, SE5A, Bristol Fighter, Horsa, Vulcan, Siskin, Tiger Moth, Tucano, Seafire (not too good of a model but it will do for now), Buccaneer, Hawk, Nimrod and Wellington.

Any others that come highly recommended?