1040 and leaving canada return questions

I'm working on putting together my Canadian and USA tax returns. It's turning out more confusing than I originally thought it would be I've since filed for an extension on my US return.

I have a few questions that hopefully someone here will be able to help. I'm attempting to file as non-resident of Canada and a resident in the USA. In 2007 I was an university student in Ontario with around 50k assets (back accounts+mutual funds+rrsps)

Canadian Return
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1. The T1161 form lists my assets on the day I left Canada. I'm not clear on what's done with this information. I've read that there is a departure tax. How is this calculated? It is determined from this form?
2. What forms do I have to file in Canada? Is it just T1 General and T1161 (taken into account my assets I mentioned earlier)?
3. I did my T1 general with Turbo Tax, indicating I was a resident until start of April and non-resident on December. Is there any issues with TurboTax for the departure return?

USA return
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1. What needs to be done with RRSPs. Do I have to pay US tax on them?
2. My Canadian bank interest. Do I list that as a 1099INT?
3. How do I report my capital gains from Canada?

The first question is: are you actually a non-resident of Canada, i.e. have you severed all your residential ties? If you haven't, you remain liable to Canadian taxes.

Read this: http://www.cra-arc.gc.ca/E/pub/tg/p151/README.html

1. Yes, it's a capital gains tax. Look at the instructions at the bottom of T1161. Generally speaking I wouldn't worry too much about it unless you had a house you sold at a profit. (Or which you are now claiming is a foreign property).
2. Hard to say without knowing more about your situation, but if you were resident in Canada in 2007 then you file a tax return.
3. Dunno, I always avoid using software if I can use my brain instead, check the figures on it manually if you are worried. It will pro-rate the personal exemptions, you need to figure out if it did it correctly.

1. Read this.
2. You have to tell the Canadian bank you are non-resident, they will send you an NR4, you use that to complete your 1040. If you haven't got one now it's too late, but you declare it as foreign income using your T5 or NR4 as the case may be, not a 1099 and you must work out the exchange rate also.
3. On the relevant obscure IRS form, check their website.

I have to say though first of all before doing any of this make 100% sure you want to move your tax home to the US. If you are going to move back to Canada eventually this can be unwise. Contributing to RRSPs for example becomes essentially impossible unless you like paying tax.