Thanks for the input everyone. I picked up the 2.4GHz Core i5 today and installed my 80GB SSD. This thing is blazing fast! 
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I'm picking up a new MBP this weekend and I'm torn on whether the 2.53 i5 is worth the $200 price difference over the 2.4 i5 for my needs.
The increased hard drive size in the mid-level MBP is not a factor to me because I'll be swapping my Intel X25-M SSD drive into whichever one I purchase.
Aside from the hard drives and (minor) CPU speed differences, they seem identical. And the most cpu taxing software I will run are Photoshop and Illustrator CS5.
Should I splurge? Or would I just be paying for .13GHz of processing power that I won't use?
...
I'm picking up a new MBP this weekend and I'm torn on whether the 2.53 i5 is worth the $200 price difference over the 2.4 i5 for my needs.
The increased hard drive size in the mid-level MBP is not a factor to me because I'll be swapping my Intel X25-M SSD drive into whichever one I purchase.

Aside from the hard drives and (minor) CPU speed differences, they seem identical. And the most cpu taxing software I will run are Photoshop and Illustrator CS5.
Should I splurge? Or would I just be paying for .13GHz of processing power that I won't use?