JamesR, are you looking at places like Tom's Hardware to get good review info? Newegg reviews can be helpful (I decided not to buy a Seagate 750GB drive today after following up on quite a few nasty reviews on the Egg), but their reviews can be biased. Make sure you note whether or not the person reviewing has actually bought one of the items form Newegg.
Sometimes you also get idiots making the reviews even when they claim to be knowledgeable.
For example, the SATA hard drive enclosure I bought had some complaints but I have had no problems with the one I bought last month from them and it saved my butt as far as losing files.