I'm glad Paul Graham think that decks are on the way out, because they're a ludicrous (or at least inefficient) way of understanding what a startup does. If you have a product, show me that. If you have financials, show me those. Otherwise it becomes a competition to see which companies can dedicate their design resources to make the prettiest deck, and which investors can do the math on your '30% growth' number to figure out that you're growing from 3 to 4 users.
The advice about valuation is also great. I listened in on a conversation with very smart founders who are used to optimizing things, and they were super concerned about having a great pre-money valuation. It's tempting to focus on it because it's your only benchmark at a really stressful stage, but if things go badly it won't matter, and if things go really well it... won't matter either.