I have been looking around for some ideas on how I want to make my workbench.  I enjoy the designs that Alexandre Chappel comes up with. And I really like the idea of using particle board for the cabinets.  It seems relatively low cost, and good enough to get the job done.  And frankly the plywood I can get locally is very poor quality at the moment.

He made this (rather large) workbench on his show and it really inspired me to tackle this project.  I really like the drawers, the wheels, the torsion top and the smooth look of the whole thing.

I'm also intrigued by the Paulk workbench. Again it is using a torsion box top to get more stiffness and it seems intriguing to have loose storage under the table top. However that would probably fill up with random junk in no time.

My existing table is made up of 2x4's, I could rework it into something like this.  It looks polished and should be strong enough.  I could augment it with drawers.  It is not as space efficient since the 2x4's take up a lot of space in all directions (compared to 3/4" particle board) but it would be cheaper, I could probably repurpose all the wood from my existing workbench with little to no expenses.

Here are some other plans that are a mix of these above ideas.

https://www.instructables.com/Workbench-With-Drawers-in-5-Days/

https://www.instructables.com/T-Track-Assembly-Table-Workbench/

https://www.instructables.com/Workbench-With-Drawers-Power-and-Wood-Vise/

Finally I was looking around at wheels.  I think I will use 3" wheels just because they have much more load capacity than the smaller 2" wheels and yet plenty enough that I don't see much advantage to going larger.  Here are a few wheels I'm looking at for now.

https://www.harborfreight.com/3-inch-polyurethane-swivel-caster-with-lock-96408.html

https://www.harborfreight.com/3-in-rubber-light-duty-swivel-caster-with-brake-61855.html

https://www.harborfreight.com/3-in-clear-polyurethane-light-duty-swivel-caster-with-brake-69538.html