I would advise to anybody undecided to really think about flash memory, it's much more durable and easy on the battery life. After my 15GB 1.8" drive dying I really don't rely on HDD based ipods, sure they're much cheaper per GB but remember, it's not a question of if you're HDD is going to die, it's a question of WHEN it's going to die...
I agree with what you say regarding the benefits of flash memory in terms of battery life etc, however it's not entirely infallible as you seem to suggest. Flash Memory has a finite number of erase-write cycles, so every time you write to it, you're slowly counting down from that finite number. When it reaches zero, that particular memory location will likely be dead.
Fortunately because the iPod is written to fairly infrequently but read constantly, this works to its advantage. I just wanted to point out the downside of flash memory (besides cost) because there does seem to be a lot of people out there who people it's totally invincible
To answer the thread topic, I think I'll be buying a 160GB iPod Classic, or a 5.5G 80GB iPod Video (if they're going very cheap now the Classic is out). I would have loved an iPod Touch but there's not enough storage and I'm not paying £40 more for 10% of the storage of a 160GB iPod Classic with fancy touch screen.