nice! i like your version. the tammy is definitely a nice lens for its price, and because i really like shooting birds, it has a nice reach on crap err i mean crop body like t1i
i love my t1i. but your 70-200 + 1.4 tc is a good combo also. the 70-200 is known to be insanely sharp. the tammy performs best when there is enough sunlight, and if you can get really close to the bird (or your subject), you'll get very nice results 
Thanks Jodelak for the input...I think I will add the 1.4 tc and maybe later sell if I am not happy with result and then think over the tammy lens.....I like to be able to autofocus with 1.4x that is why I am considering it....my 2x is okey but only manual focus. I like the beep sounds to confirm I am focused.















