>>>I have another questions about replacing the hard drive with SSD. I am pretty much convinced that SSD is the way to go.
>>>
>>>Dell quoted Western Digital SSD and I found that Samsung, supposedly, the fastest and a "Pro" grade SSD drive.
>>>Aside from the prices (where Samsung is the most expensive, about $450), I want to be sure that the dimensions of the SSD will fit into the existing laptop.
>>>
>>
>>Pretty certain that the Samsung EVO class is good enough for you if you were working with HD before.
>>PRO is only neccessary for a ***heavy*** W usage, think video generation or capture or heavy DB crunching, esp 24/7 continuos.
>
>Thank you for your input. I thought that PRO will keep the drive more reliable and would last longer.

It does. But the MTBF is so high for normal usage, that - barring manufacturing or design defects - you wil not enter that range with dev usage even with windows doing behind the scenes swapping of the processes of a few VM of a single user.

>The speed of data crunching is not that important; I am not playing games :)

PRO speed is only minimally faster.
But data crunching will often create huge temp tables which are W seen from disk ;-)