Let me make a system recommendation.
Core i5 2500K: ~$210
Gigabyte GA-Z68MA-D2H-B3: ~$115
Intel 311 Series 20GB 2.5IN SLC SSD: ~$132 (NCIX)
+ a big, quiet hard drive (2TB Caviar Green drive?)
(then your choice of case, PSU, RAM, etc)
The interesting thing about the Z68 chipset is it allows you to setup a SSD caching arrangement, where a 20GB SLC drive acts as a disk cache for a much larger hard drive. You can see the performance characteristics of such a configuration here
The main benefit of such a configuration is the user no longer needs to manage a SSD "small boot drive", and this is something that I would probably configure for someone who might write a lot of big files (videos, games), but not understand what should be written to the SSD (swap file, OS, apps but not big games, etc) and what should be on the secondary HDD.
With a SSD and Caviar Green drive combo the storage solution would be very quiet.
Even if you are a technology enthusiast that may be interested in the full performance of a SSD drive, if you get a smaller SSD for budget reasons (<= 120GB) there are a number of items that you may not be able to fit on your SSD like your Steam folder but you would like better performance for the games you actually play.
Its not as fast as a single big SSD, but it is a lot less expensive, and you don't need to think about what is stored on what drive anymore.
Before anyone jumps in and says "OMG! $132 for a SSD, what a ripoff", please note that this is a SLC drive not a MLC drive, so it is better optimized for writing, and a cache buffer is written to all the time.
If you're totally cool with the two drive solution, go get yourself a budget 120GB SSD (last gen Sandforce controller-based drive perhaps) along with a 2TB "storage" drive, you can do that for a little bit more money. While your processor choice is important, not having your system solely dependent on spinning rust for storage is arguably even more important from an overall system responsiveness perspective.