From what i've seen myself the image quality on the 1400 surpasses the 5050 very noticably. The 5050 is made for business printing whereas the (6 colour) 1400 is made for photo printing so you get far better skin tones/gradients etc.
Most people don't notice that much difference but i feel for what you're paying the image should really be top notch.
The biggest difference is the speed. A print on the 1400 may take 1 or 2 minutes. The same print on the Ricoh will be out in 12/15 seconds!
The Ricoh is a much cleaner system, enclosed cartridges so no messy refilling etc.
You can find out more about Sawgrass here
http://www.sawgrasseurope.com/
At this stage the main thing you need to know is that all ink used in small format printers is licensed. That means no-one else can come along and sell cheaper sublimation inks in the marketplace. Cheaper inks do exist but
sometimes havn't been tested to the same level and you won't get the same support.
If you go the Ricoh route your only choice is licensed ink.
If you're just starting out my advice is stick to the licensed stuff. Artainium/Rotech/SubliJet are the 3 brandnames you'll see around.
The inks are very expensive but if you price your products right you'll still be able to make a healthy profit.
I stopped printing sublimation tee's years ago. I hate the feel of them and you aleays get a rectangle press mark aroud the image where the polyester outer has melted slightly. Many others sell them quite succesfully so that's just my opinion.
Yes, always use a protection sheet topand bottom of your blanks to protect your platen from ink/damage.
Not sure about templates for tee's. You can get frames/templates for other items, mugs, mouse mats etc. If you take a look in our Member to Member section you'll see postings from Paul, he sells templates suitable for mugs.
He'll also tell you the size for 11oz. Again, I choose to use 10oz as many of my customers didn't like the heavier weight of 11oz.
CorelDraw is great for printing sublimation as it's well supported for setting up etc. Photoshop is a little tricker but better for photo editing/insertion.