Pro gay marriage aid?

I am doing a research paper accompanied by a speech for school on why homosexuals should have equal rights as heterosexuals. One of the main topics in my paper is why marriage should be legalized for lesbian and gay couples. I need a visual aid as well. Are there any videos I can show that show points why gay marriage should be legalized? or does anyone have any ideas for a poster I could make?

do a poster w/a timeline showing how america has discriminated against all minorities over time. interracial marriages used to be illegal too. bring in some scientific facts and find pics to support them or pics from articles or somthing...idk good luck.
p.s. dont use the rainbow, its overrated. (im gonna get chewed out for this but idc, i hate the rainbow, its so bright *whine* an cliche) if you need a symbol use the = sign.

one statement that really confirmed my beliefs was from, believe it or not, family guy. Lois said to a person who is anti-gay marriage "So two people who hate each other have more of a right to get married than two people who love each other"? i dunno how u could incorporate that, but that's what i think of. Maybe show videos or posters of protests. or mention Matthew Shepard. (look him up on wikipedia).

do a report on the stonewall riots

Here's a good video: http://www.letcaliforniaring.org/site/ap...

There was another one showing a regular gay family, but I can't find it.