Keep in mind that if you are going to laminate the control panel, that it is something like 1/32" thick, so if you add that to a 5/8" piece of material, you have 11/16", which you CAN get T-Molding for, but it is harder to come by. There are a few people here that have plenty to sell you if you want black, blue, red, or green. I just got some a week or so ago from Truecade here on the forums.
Also, a note about laminate, using this stuff will make your control panel, or entire machine for that matter, as hard as your counter-top in your kitchen (unless you have granite or something), so it is a good option. If fact, I used laminate for my cabinet, but I am not putting it on my control panel top.
Keep this in mind about laminte.
1) You need a router and trim bit to work with laminate.
2) The adhesive is VERY smelly and sticky
3) While it was surpirsingly easy to apply, it was a messy job when trimming
4) Laminate was designed to go over good grade particle board, not MDF. MDF will work, but the pros will tell you that particle board is better.
5) Laminate tends to lose it's texture and get shiney where there is a lot of frictional contact (like where your hands rest on the control panel). This is one of the reasons I didn't use it on the control panel top.
That is what I have learned about using laminate the last couple of weeks. I really like how my cabinet is turning out, but I can't wait to get my control panel done (after I get back from vacation) and get my artwork applied (mamemarquees.com) to my 3/4" MDF control panel top!
Good luck, you are going to love this hobby!