2k1 Accord: which engines come recommended?

The subject pretty much says it all. I haven't really thought a whole lot about an engine swap, I'm still debating what I'm going to do to my baby when I get the time/money. I'm looking for decent bang for my buck.

I've considered giving her a t-bone or supercharger, or just tacking on the usual i/h/e to eek out a few more ponies. But now I'm thinking, maybe I should just start with a more powerful engine, then worry about the other mods later.

So....what engines come recommended for an '01 Accord. She's got the F23A1 in her right now....in case one didn't already know.

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