My Dell has been great and anything as far probs running Sonar has baan an issue with just making some usual adjustments or tweaks.
Mine came with the Standard Seagate Barracuda HDD. I just had the original HDD crap out so I added 2 2 TB Barracudas and an External 500 GB for back up/recovery. I run the OS and other software off of 1 and store all my projects on the other.
The load that it now puts on the computer running Sonar is NOTHING. All the indicators for performance barely even flinch now and thats with 8GB of Memory. The latest Dell XPS Studios are coming with 32 I believe.
If I went with Dell again Id have everything done when bought and ran under an extended warranty.
There are some GREAT techs on this forum as well that help alot when needed.
But as far as my specs, it euns X1Expanded without any hitched now and am not in a big hurry to jump to X2 yet (Which I was going to recently) but recent event have me putting it off for a bit.
From what Im gathering from reliable techs, Im running Home Premium 64bit which supports up to 16GB of memory but that is the most I can upgrade this MOBO to anyway so no need to worry about any other OS cause it wouldnt make any benefit to running Sonar.
So until I have a need to jump up in Processor Specs and Memory Im doing as good as I can get out of Sonar.
In short, Im happy and content with the Dell and X1 (d) Expanded