A highend all in one PC, or a desktop tower factor PC? Plz.

It's not a laptop, i'm perplexed to either buy the all in one that i stated its specs above, or to build a PC from scratch, and based upon my work field, and my usage loads on computer, i'm confused between the maximum ability for upgrade in a Tower factor Desktop, or the limited upgrade-ability and the low power graphics card that is mainly for labtops line, it's a 650M, not just 650. SO i was trying to get any experience from anyone who came across such a dilemma before, or had experienced the two PCs, an all in one, or a desktop, and has a better opinion for me.
To note somethin: the specs of the all in one is probably one of the highest high end all in ones in market, so it's a matter of experience ,and a matter of which one is better for my work field, now, and after then, do architects or designers who went for that powerful computer purchase, came across such a dilemma, so what are their concluded opinions?, just that.

And it will drop performance over the non-M in the same model.

Any reason to go with this allinone? Repairs run just as much as laptops (hint? high!!!)

Here I like my i7 laptop but it's a balance of CPU/GPU since I write code more than do graphics work.
Bob

I'm have been always using laptops, and probably that's my huge turn over towards a large desktop, so i really like the one unit packed hardware, no wire hassles, and very convenient for space saving, i really like my workspace to be comfortable and eye pleasant, and even to easily move.
Another reason which i describe as a luxurious one , is the all in one Touch Screen, it could be very helpful in adobe softwares, or even sketching up ideas, may be or may be not, that's why i asked for other experiences, but this Touch screen, with even the windows 8 coming soon, it's something that keep pulling you from beneath to choose it!.
But still if there are practical and really big advantages for the Full Tower desktop for me as an architect or Designer, i guess that's enough to pay off for that leaning towards a luxurious PC experience.

But seriously the all in one specs are even very good, they are the reason that confuses me.

The M version of the GPU is the tip off. And the out of warranty repairs run just as much as a laptop so it's kinda of a scary model. At least you know this going in.
Bob

By the way this All In One i'm talking about the Lenovo Ideacentre B540p, the highest model available!.

the all-in-one is NOT a workstation and is not designed to comfortably run the applications that you listed in your initial post.

Using the BEST all-in-one to run those apps would be like using a Volkswagen Beetle and a trailer it could pull to move your household cross country - it could be done but look at all the wasted time and effort and time is money.

Yes, "it could be done but look at all the wasted time and effort and time is money", is absolutely right.
Alright i'm taking that into consideration now, thank u Edward for replying.

choice over the best display (vice the one that comes with the all-in-one), good system ventilation/cooling, and enough drive bays/slots for 2 CD/DVD burners and multiple hard drives...some dedicated just for backup. Adding to that....if a component dies or fails...I want to be able to open it up and replace the failed component....that's much tougher in an all-in-one. Another good thing to have is a good quality UPS to ensure you're not shut down with an unanticipated power outage.

All-in-ones, slim-lines and other small form factor PCs are great ideas at first thought .... just not super practical for all users in the long run.

Let us know how it turns out.

VAPCMD