I have 6 Seagate SV (surveilance Video quality 500GB Hdd's & two (nothing but trouble) AS 500GB cheapo Seagate drives, which I bought from Overclockers in Staffordshire (Stoke). These have repeatedly died, and slowed my system down, despite me sending them back to Seagate - I'm not terribly impressed with Overclockers either, but thats another story (the RMA procedure sucks) - I use Novatech (near where I live) now, and am 110% happy - they even repaired a VGA Monitor that was a month over warranty expiry, thats what I call great customer service. The SV drives reall are great, and worth the extra 30% asking price for 24/7 reliability. I also have two Samsung Spinrights 1TB, and these are faultless too!