"We wanted our HDD performance tests to represent programs, not just Windows startup, because most enthusiasts don’t restart their systems often enough to make an OS-only SSD worthwhile. That means having a system partition that’s at least 100 GB plus breathing room, with realistic consideration going to drives rated at 120 GB or more." -> from the 'Value Conclusion' summary page
Great article as usual... However I'd like to disagree with the editor on the fact that you need at least a 120GB system drive. At the time I wanted to delve into the SSD world, I couldn't afford more than the smallest drives, and so I purchased the OCZ Vertex 30GB SSD.
Now I had to figure out how to load my Windows 7 (64bit) and as many apps as I could on it... to take advantage of this expensive 30GB drive I just bought...!
Alas - I was able to load the OS, ALL my everyday apps (including large ones such as MS Office 2007, Adobe PS CS5 + Adobe Premiere Elements 8) and still have breathing room left to spare (approximately 6GB free space left - which is a 1/5 of the drive - which is just enough to leave free). Only my games were installed on the HDD
Here's how to do it:
- Turn off 'System Restore' right after the initial first-time-boot of your OS. Then finish your Windows installation (latest drivers, Windows updates, etc...) -> Then turn it back on when you're done and limit how much drive space it takes to about 2% only (If you use 'System Restore' to restore your computer - you won't want to go more than a couple restore points back anyways)
- Move your 'virtual memory' to the mechanical HDD -> By going to: System Properties -> Advanced -> Performance -> Settings -> Advanced -> Change -> and moving the 'page-file' to your mechanical HDD (**tip: in your 'power settings' options -> configure the HDD to 'Never Turn Off', as so to not wait for it to spindle up if it's "sleeping" when your OS decides to go to the 'virtual memory')
- Move your data folders to the mechanical HDD
- 4th thing to do is of course keep your system clean by periodically cleaning out temps and junk every once in a while
So that's all on a measly 30GB drive. Now SSD prices are not as crazy high as they were, even just a year ago... So a 50-60GB drive would still save you LOADS of money compared to a 100-120GB SSD, while being, I'm sure more than adequate for your OS... all of your daily apps... and depending on how many games you play... most of them, if not all of them will fit in there too..! (I recently upgraded to a 60GB SSD on my main system... have all my games now on it... loads of room to spare)
To sum up... you don't need a minimum 100GB SSD for your system drive... If budget is an issue - you'll be more than fine with a 50-60GB SSD