I would check out the Desire HD forum before considering that phone!!

HTC Desire HD - Android Forums

Seems there are a lot of un-happy campers there.

I love my Desire, you should go for it!

 

Seems the HD has some major battery issues. I wouldn't look at it until they're addressed.

 

Then change the device you have in your profile because it says you have the Hero!

 

You don't usually have to upgrade straight away, might be worth letting the contract run month-to-month until you decide or the HD problems sort themselves out...

That's what usually do anyway...

 

Or...get another desire, and sell your old one! Or even the new one!!

 

Don't know what network you're on but O2 will give you a heavy discount on your monthly bill if you sign up for another period and keep your current phone. I'm sure other networks do it too, worth considering if you're happy with your Desire.