Maximum PC

I recently got an ultrabook with a dedicated graphics chip, but without an SSD. I'm planning to upgrade to a 256GB SSD very soon, but I can't decide which one to buy. I have three in mind:
The OCZ Vertex 4 256GB,
The Samsung 830 Series 256GB, or
The as of yet unreleased Samsung 840 Series Pro 256GB.

From the reviews I've read, the drives generally stack up like this: Samsung 830<Vertex 4<Samsung 840 Pro (prototype drivers). I was just wondering if anyone would like to give their opinion on which drive I should upgrade to, taking into account price and performance. Oh yeah, my laptop can only take in 7mm drives, so I'll have to mod the Vertex 4's case if I get that. I know how to do it, so it won't be a problem.

http://www.tomshardware.com/charts/ssd- ... ,2792.html

id get the ocz, i have a 120 though. no problems with it. although i am not impressed with the sticker u get with it.

Imho, you will do well with any of the three.

Samsung 830 Series. Reputation for both performance and reliability.

sorry to revive a dead topic, but my friend just brought up a point i haven't thought of before. between the three SSDs I listed, on what applications will I be able to notice a significant speed difference between them? in other words, will i be able to tell the difference between the samsung 830 and the samsung 840 pro?