Hi, I decided to update my i-MAC (800 MHz chip) from 10.2.8, but can only buy 10.5 from Apple and this demands more MHz than my chip can deliver. Amazon has 10.4 through sellers for $279 new. There is a cheaper used version, but I am unsure about that... Any ideas of where to find new...

Do any of these cases come with removable tops rather than only removable end pieces? If so is there a special suffix to the item code? TNX F

Hi--So far I have used a CD player as my desk audio source. I bought my children iPods, but have never used one. I am looking at the many small digital music player devices and have some questions. Note that I have no experience with these products. 1) Are iPods the only devices I can load...

I use one of these (D-E307CK) as my headphone source and am buying a backup. Are the new Discmans as good or better than the old? Any old ones to avoid? I am interested in sound quality and longevity and don't need radio or non CD-ROM formats. TNX F

Good afternoon, I built a CMoy (OPA 2227, gain of 4) without a volume control and adjusted volume with the control on the Panasonic 32 ohm headphones. Subsequently I added a 10K (ALPS RK097) potentiometer to the audio input in the usual fashion and it appears sound quality has suffered...