Mac Mini 2012 - external audio drive options

Hello all.

I have a new 2012 Mac Mini 2.6ghz just been delivered sitting on my desk. It has a factory fitted 256gb SSD inside I intend using as my OSX/boot drive. I am looking for a decent external drive option purely for audio recording/sample use within my DAW.

I have a small project studio and my Mac Mini will be literally next to me - I don't want to go for a noisy (but fast) HDD option like the velociraptor as it will drive me crazy.

I took the plunge and I bought a FirmTek MiniSwap U3. My original thinking was to get a Samsung 840 Pro SSD and shove it in the MiniSwap to connect to my Mini via USB3 and happy days. However here lies my predicament, I didn't realize that I cannot enable TRIM externally via USB3.

So here are my two questions:

1. Would NOT enabling TRIM on the 840 Pro be such a big deal?
2. Does anyone have an alternative HDD option that would be great for audio/DAW use? (needs to be very quiet with a fast access time).

Thanks in advance.

Cheers guys.

I wasn't too sure how critical TRIM would be - in relation to using the 840 for audio recording (frequent read/writes). I wasn't keen on buying something which won't last too long before issues begin.

Would you say the 840 pro is the best way to go for an external SSD?

(For example the basic 840 retails about £40 cheaper)