field hockey lens recomendation

[CJW314]

Exactly JimC with almost 700 i can buy (the next time i travel to USA) the new sony G lens or used minolta 100-400 APO or 1/2 sigma F4 . If i dont like the performance of the a200 i can sell / trade the kit for Xsi body and with 700 i can buy the IS USM lens.As JohnG say not the best but A LOT better than my superzoom and y can shoot today for a lot less money, FYI in Mexico the canon 70-300 IS USM lens cost 1100 US dlls and the sony 70-300 G lens cost 1700 dlls.
Again thanks alot all for the GREAT advice and for tolerate my poor english.
Carlos.