I've been thinking of getting a new scale too. I was considering something like this:

http://www.amazon.com/JOOKKI-Hanging...+digital+scale

Our fellow member @Zincubus mentioned it in a thread a while back. Just toss the snake in a snake bag or pillowcase and weigh. No worries about the snake moving around, climbing off the scale, finding a big enough bowl for them to sit in, etc...
I'm thinking it'll be much easier for bigger snakes. But, even at 800 grams Tyson is tough to get on my plate style kitchen scale.
So, I may get one of this style, but I'd be shopping around before buying. Just wanted to see if this style might be something OP might like.