dont worry about it - i've had plenty of sites rank just fine in Google with redirects and subdomains, if you do a little digging into Google's webmaster guidel

dont worry about it - i've had plenty of sites rank just fine in Google with redirects and subdomains, if you do a little digging into Google's webmaster guidelines, they even mention it to some extent (not that everything mentioned in their own doc's are 100% accurate as to what will and will not hurt your rankings)...