OCZ has always been a greater overclocker compared to corsair.
I can tell you this right now, you won't really get far overclocking either ram since they're both "value".
If you want GOOD Value Ram that works fine and dandy, go for Crucial. Crucial beats OCZ and Corsair here.
If you want overclocking, go for either Corsair XMS series, OCZ Gold or EL series, or Crucial's Ballistix.
Unless you're really an overclocker, getting high-end RAM isn't worth it since the performance delta between all of them is less than 5% at PC 3200.
And yes,the sale on those Corsairs on Newegg is an excellent deal!