Premiere Pro 1.5: Best analog to digital converter for BNC?

recently i've been looking external analog digital converter (that connects via firewire)that work premiere pro 1.5 capturing uncompressed digital video source, whether bnc composite u-matic s-vhs via s-video (either din or y/c bnc) betacam sp bnc component.  nice if import digital sources (i.e. dvcpro 50/digital betacam) sdi. 

 

i've looked @ few aja or blackmagic, i'm not sure if work premiere pro 1.5 on windows xp sp3.

 

does know of converter?

i have no idea if work list, reading @ http://www.grassvalley.com/products/converters

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