Note that the prices are the cheapest I've been able to find in my country (Slovenia) considering shipping costs. So far my first option is the Samsung 830, as it seems to be a proven SSD with good reviews.
Here are also my specs:
Intel i7 920
I'm aware that my mobo only has 3GB/s SATA ports, but I probably won't be upgrading it until I get a new CPU.
I would skip the Crucial and the OCZ. Due to the mediocre benchs as well as the controller. It all depends on what you do with your computer. Kingston will do great for most applications. Here is the best comparison for real world applications. http://www.xbitlabs.com/articles/storage/
^ Disagree on Crucial m4s. I have 2 ea in i5-2410m laptop and 2 ea Samsun 830s in desktop i5-2500K. There is difference in benchmarks, agreed - But When it comes to real usage - There is NO real noticeable difference.
For that matter, what counts is reliability and least user problems. Performance is not normally a deal breaker when it comes to real life day-to-day usage
My choice would be for the Samsung 830 or Crucial M4 (which ever is cheapest).
The Samsung 840 would be a great choice, but has not been out long enough
The Vertex 4 is similar in that it is has not been out long enough, Plus it would be my last choice of the ones I've mentioned.
Have 3 M4's, 3 830's, 2 Agility IIIs, two Intel's + plus 3 other older ones.