yeesh, these things just keep getting cheaper and cheaper. Last time I checked it was $95 for a WD 200gb HD with 8mb cache, now a 250gb with 16mb cache for the same price? Nice, might have to pick me up one, but theres a 68" samurai sword for the same price that's calling my name
Does/ will a bigger drive mean longer seek times and longer scan times?
No, shouldn't effect it in terms of what you'd actually notice. Don't do like me though and let your huge drive become completely fragmented
It still works fine and whatnot, but sometimes it does that crap where it doesn't want to delete a file.
Although I doubt you'd notice a huge significant difference between 8mb cache and 16mb cache, the fact that you can get 90gb more, plus that extra 8mb cache for what...$13 more, you should definitely get the western digital.
And I am trying to build a quiet and cool system so would this play a factor
The bigger drives get a little hotter because of the platters and such, however noise won't be an issue.