None of the above,
The ASUS A7N8X-E Deluxe has SATA RAID on it. So you can connect the Drives via the SATA Connectors. That is why I recommended the SATA Drives 800JD. The Abit NF7-M does not have a SATA Controller so you have to use IDE Drives. That is why I recommended the IDE Drives 800JB.
When it comes to speakers, we can set you up with something like the:
Logitech THX Certified Z-680 5.1 500Watt Dolby Digital Speakers
Logitech Z-5300 5.1 THX Certified 280Watt Speakers
Logitech Z640 5.1 71.2Watt Speakers
Any of these speakers will allow you to get the great sound this system offers. Personally I have the Z-680s on my A7N8X-E Deluxe and the sound for listening to MP3s as well as DVDs is amazing. You can watch DVDs and get the full sound of a Home Theater System with them.
It all comes down to how much you want to spend and what you want to do with the system.
Take Care,
Richard