it costs about Rs 350 as charges for the bank, got about 500-600 on a 25$ check once! but then on adbrite $5 seems too huge to get i don't even manage a few cents there since you can set the minimum ammount yourself, so i guess you can get any ammount of check!
I once got a check for about $1 from adbrite Never cashed that, because as uttoransen said, the bank charges that much to process foreign currency cheques. Btw uttoransen, it's not too bad especially if you have a site that adsense won't accept. It has worked out reasonably well for me in the past.
if you approve the ads manually! and only allow the high ammount ads to qualify you can manage some money! but then i have tried everything, adbrite just don't work for me! good that adsense accepts all my sites