I'm looking to upgrade my computer once again, and it has come down to this. I currently have a Seagate Momentus XT 500GB. There's not quite enough space, but with cleanup I'm sure I can manage. I have around 380GB filled, with more to come. So, I'm left with: Crucial M4 512GB - Huge performance gain, no storage gain 1TB 9.5mm HDD - No/little performance gain, huge storage gain I also heard the M4's garbage collection sucks without TRIM on. How will TRIM enabler perform on the M4, and what effect will 380GB of data have on the M4? And most of all, which one should I choose? I'm thinking of using Newegg promos in conjunction to Cyber Monday for huge discounts. Thanks!