I would definitely think about taking a look at him. From a fantasy persepctive the question is, what will you be able to get from another RF on your bench or waiver wire to compensate for the 200-250 AB's Bradley typically misses each year due to injuries. If there's a decent option there, Bradley's 300 or so AB's could be quite useful.
The Rangers have stated that they will attempt to keep Josh Hamilton healthy by playing him at both the OF and DH positions each week. Presumably this will affect Bradley's positon eligibility since he will likely get some OF time when Hamilton is at DH. I would think that his RF eligibility will happen at some point but it's hard to say how quickly that will happen if he's still the primary DH. Ron Washington has said that he will only play one game versus Toronto on Wednesday and Thursday and that game will be at DH due to the turf at Skydome.
"Trying to hit him was like trying to drink coffee with a fork." - Willie Stargell on Sandy Koufax