Help with buying the right MacBookPRO.

Question

I have an old 2006 Ca vintage powerbook. It works after a few repairs but I cannot update. So I will have to now buy a new one.
I have many questions, but the main one is about solid state hard drive.
Two questions:
1/ Limited write cycle? What does that mean in terms of solid state? After some time does one have to change the solid state drive, even though it still partially works? 
2/ Solid states don't get affected by magnets, but what about these new stronger X-rays machines in airports,   .. . or even Light? I fly every two months and those new X-ray machines are very strong.
I am a creative type with low income, so I want the macbook pro to last more than 3 years. I have a large archive in London and many scans etc, so I also cannot afford to lose any info either. --Having already lost thousands of Emails more than once in Apple's mail!
The bigger the storage the better, too!
I was told that the new retina screen is more fragile, and also as great as it looks, doesn't print with the same colors. I dabble in graphics but don't print that much, plus I work on photos and video, and I wheel my laptop in a Tumi case at the airports.
Which MacBookPro would you suggest?
I would really appreciate some advice on which of the new ones to get. Solid state without retina or with retina screen? No Solid State and an inbuilt drive? I often have slow broad band, so I still like to store the many files on hard drives and in the laptop.
Prima

Answer 1

Go with the non-Retina 15 Inch.....The Retina Macbook Pro is quite expensive and there is no update available at the moment from Adobe and Microsoft to support the Retina Screen.
With the Retina Macbook - you can not upgrade your RAM in the future should you need more - since it's soldered in the logicboard - the flash storage is upgradeable but not worth it's price right now.
With the non-Retina Macbook Pro - you can upgrade the RAM yourself and if you think you're running out of storage space - the hard drive is also easily upgradeable.
if i were in your shoes - i would get the base 15 Inch Macbook Pro - add the antiglare Hi-Res screen if you need it and do the RAM upgrade to 16GB - That's what I did to my 15 inch Macbook Pro.
with regards to your SSD question/concerns:
SSD Endurance
3K P/E Cycles
5K P/E Cycles
10K P/E Cycles
30K P/E Cycles
NAND Capacity
100GB
100GB
100GB
100GB
Writes per day
10GB
10GB
10GB
10GB
Write Amplification
10x
10x
10x
10x
P/E Cycles per Day
1
1
1
1
Total Estimated Lifespan
8.219 years
13.698 years
27.397 years
82.191 years