DEFINITELY want an Infrared thermometer - I got an el-cheapo from Amazon - something like this:
It's like less than $25. I have dropped mine at least 10 times and it sounded like a grenade going off, and it just keeps working. And they're crucial in cooking with a griddle ... (and can be easily used in the kitchen in many many ways!)
I'd also recommend checking Walmart's griddle accessories ... They have a generic brand of stuff that's the exact same stuff as Blackstone - they're made in the same place in China, just labeled differently...but they're much, much cheaper.
And of course, you'll need a couple-a-few lbs of Bacon ;)