I'm a designer (web/print) so I've always got Photoshop, Flash, Dreamweaver, too many fonts, and other various stuff open at once.. The G5 I'm using is Dual 2 GHz with 5 gigs of RAM and using a 7,200 rpm/8MB cache hard drive (Maxtor 6Y250M0)... I've been having the problem where if you switch from one program to another, that program you're switching to lags (spinner wheel while interface loads up again)... This even happens if I'm just trying to save a file (spinner wheel....................aaaaaaannnnnnd.... ok it saved - thank god)... I know I could close down some unneeded programs, deactivate some fonts fonts, etc (which i need to get into the habit of doing).. but i was curious if getting an upgraded hard drive would help that situation which brings me to Read/Write time (WD's Raptor 10,000 rpm) or Buffer Size (say WD's Caviar Black 32 MB buffer) (NOTE: not saying I'm getting those.. just examples... haha, after reading posts - seems many are touchy about the hardware they use/recommend)... I'm just out of space in general and need quicker drive with more room.. just curious if you guys could give me any insight... if neither matter, I'll just go across the street and grab a drive.. thanks guys!