UDMA/100 vs Serial ATA/150 hard drive differences

[Jesus Antonio Santos Giraldo]

Hi all,

While searching to buy a new hard drive I found something like:

Hitachi 120GB UDMA/100 7200RPM 2MB IDE HDD
Maxtor 60GB 7200RPM 8MB Serial ATA/150 HDD
Seagate 80GB 7200RPM Serial ATA/150 8MB HDD
etc...

I noticed someones have   : UDMA/100 7200RPM,
Others                    : 8MB Serial ATA/150 HDD

What's the diference between UDMA/Serial ATA?
Which is better?
Which one is better suited for Linux?

Any help or recomended reading would be very appreciated.

BTW: If I you have to choose between Hitachi, Maxtor, Seagate what will you
choose?


Chucho!