Join Date: Jan 2009
Location: USDF Region 1, USEA Area 2, USEF Zone 3 - Maryland
You're horses should have their own tack, that way you know the saddle is a perfect fit and you don't have to adjust bridles before a ride.
For your first saddle(s) I would say go with wintec. You can get an AP 500 for about $400. They have to adjutable gullet kits so you can customize and they are pretty comfy and get the job down.
For bridle I would just get a regular cavesson, any brand will work, just stay away from made in india leather. Pick out pretty ones at the tack shop :] Be careful though, TBs can take either a cob of full size depending on how they a built.
For boots, it depending if/how they interfere, but until you figure that out then I would just get some nice brushing boots. Definitely for the fronts, backs would be good too. You might also want to pick up a pair of bell boots in case one of them forges or overreaches