Off topic - I also read Philipma's post as some kind of spam given that he provides no intro or info as to why the OP might want to consider a Samsung drive and instead goes straight into instructions on where/how to buy a product the OP didn't ask for! I think some of Philipma's support network should apologise to Gator...
On topic - I'm looking to upgrade my 2008 2.4GHz 24" iMac with an SSD and I too am looking between one of the OWC Mercury/Extreme drives and the Crucial M4.
Given the age/spec of my iMac I'm guessing it might not have all the right technologies to extract the maximum performance from one of the Mercury Extreme drives but I'd welcome any insight there?
wow this is very simple samsungs work well and cost less.
if you want me to pick between the owc and the crucial take the owc. ( Why OWC gives fast returns when gear does not work)
if you want a long reason why i don't want the crucial or the owc here goes. the 2010 mac minis had a lot of trouble with crucial /micron ram. I installed more then 40 sticks of ram into 2010 mac minis. more 200 sticks into 2009 minis.
samsung were 100 percent good. 6 crucial sticks from different venders did not work at all in 2010 mac minis they work in 2009 mac minis and they worked in a 2009 imac. I do lots of installs and up until 2010 all crucial ram was good.
Since I open tons of minis up I see that oem ram of samsung, hynix then micron/crucial are in most minis. The only bad oem ram I get when I get new/refurbished sealed minis to mod has been micron/crucial again only the 2010 minis. So I know that crucial/micron had some issue with minis.. I also know that crucial ram chips and ssds are made in the same factories. since I have no knowledge of the reason this problem has happened with minis I am now avoiding crucial for Mac minis.
I like owc I also know that if you open an owc ssd up it has micron chips. I think toms hardware had a photo.
Since I am trying to stay away from micron for the time being this leaves me with two or 3 ssds I would use ;
Intel, samsung or toshiba. Samsung has had some good prices and they are reliable. So I picked samsung my post also had the ram as an after thought not as a solid pick, but the owc is 120 gb for 279 and no ram.
My pick gets both the samsung 128gb ssd and 8gb ram for under 279.
http://eshop.macsales.com/item/OWC/SSDMX6G120T/ 279
The op asked for "any practical advice" so I told him you can get a 128gb ssd and 8gb ram for less then the same price of your pick of just the owc ssd.
I still say that would be considered practical advice.
look at the screen shot .
BTW I said 2 sticks of 4gb ram not 4gb ram.
so my advice would give you an ssd for 187 and a pair of 4gb ram sticks for 70 a total of 257 dollars a savings of more then 20 cash for more gear that is know to be reliable.
Does that fit your definition of : " any practical advise" ?
The answer is no at least your reply was that I spammed you.
I would like to give you some more practical advice;
This is a forum where people really like to be helpful lots of problems have been solved here.
If one person gives you an answer you don't like just move on to the next answer try not to insult the person giving an honest thought out answer that they spent time to research and write up for you.