A Vertex 2e should be in almost all situations basically as fast as any of the Crucial 128mb drives, infact faster than almost all of them.
Most people get confused as to where this "performance" comes from.
Booting windows is literally the worst reason to buy an SSD. If you're someone who finds themselves constantly with windows getting bogged down as you multitask, a SSD will be night and day.
On almost any laptop frankly going from a few year old small 5400rpm(sometimes lower) low capacity drive to a 7200rpm also silent, 4 times as big drive will have a huge boost to booting times aswell. But hdd's, no matter which you get, will always chug when you throw more than a couple small programs at a time at it.
As for your laptop, it has AHCI, the chipset your laptop is using is not much more than 2 years old, an Asus NF4 SLI 939 board is, well, it was released 5 years ago, the chipset in your laptop is lightyears ahead of a 3 year old Nvidia NF4 mobo.
Its pretty standard for laptops to have had their drives with ncq/ahci enabled in bios so its almost certain your SSD would be aswell.
Have you read my post?
Laptop progression - Samsung 80gb - Seagate 250gb 7200rpm - Crucial 120GB SSD, forgot what model but not a V+ - The crucial does everything better than the two former hard drives, boot times, repsonse times, multi tasking, loading programs etc... The laptop only has IDE compatiable in the BIOS, also device manager shows no ACHI controllers. Not sure what you're on about. The 945GM is about 4 or 5 years old going by memory, the chipset may have ACHI but its not implemented in this particular BIOS, the laptop dosen't even officially support Core 2 cpus but its been working with a T5500 for 2 years without problems, even undervolted to .95v at stock speed via rmclock.
I did not buy the ssd for windows boot times, are you just trying to nit pick everything?
I compared the Vertex 2E to my 300GB velociraptor, not the crucial drive. The op had a velociraptor as well, i noted a performance increase on an X58 mobo with the Vertex 2E, however not that much better than the velociraptor, as the OP himself is noticing, it does indeed handle multitasking etc.. a whole lot better though.
I've stuck SSDs in old first gen LGA775 rigs with P4s and seen a massive improvement, so telling the guy he won't see any with an SSD because his gear is old really dosen't make sense. I think its more due to the fact he had a very quick mechanical hdd to begin with, always was and still am a huge fan of the velociraptor as its the first mechanical SATA drive i saw a huge improvement with, the original Raptors was lack lustre imo. I'm not against SSDs, all of my pcs have ssds as the boot drive now, i currently own 4 OCZ LE 50GB, one LE 100GB, 2 120GB 2E, 60GB 2E, Crucial 120GB, 96GB 2E, 32gb Onyx and 2 Samsing pm800 64GB.