FCP Removing Handy Cam look with out De-interlace

Hi

I am using FCP (5.1.4).
What I was told a while ago was, if I wanted to get rid of that handy cam look (tinny look) I should De-interlace (Effects, Video Filters, Video, De-interlace) my footage. This does work, but the footage is not as sharp, especially when it is moving footage which is what I film a lot of. I thought this was the way it was so I put up with it.

Recently I saw the result of some filming (shot on Mini DV) which was 100% sharper (clearer) and did not have that handy came look.

I was wondering if anybody may have any ideas on how to achieve this with out using De-interlace?

I had tried a film effect too but it is very jumping with moving footage.

I hope there is a basic solution and my question look like it has come from a newbe (as I am).

Any help or suggestion would be greatly appreciated as I don't know anyone else that films, so most of the time it feel like I am walking through the jungle at night and keep smacking my head into trees.

Regards
Joseph