How detailed it requires for importing list?

A list to follow
For example
Do i just list
1 Canon Digital Camera
2.Computer Desktop
3.Monitor

or I list like
1 Canon Digital Camera, Power shot SD400
2.Computer Desktop:Dell 4800
3.Monitor: Sony ...

I mean, I may have changed some of my stuff when I formally move to Canada. So what if i provide too much details, but the Camera I will actually bring in is not as same as the one on my list?

Any thought?