Help with a rule for mod rewite

I have a rule that works ok

RewriteEngine ON
RewriteRule ^([A-Za-z0-9-]+)?$ index.php?do=$1 [L]

That takes something like /wwwroot/clip-bin and interprets it as index.php?do=clip-bin

Now my question is I need a second rule.

In the clip bin, I have a list of clips that I want clickable..the url of them is /wwwroot/clip/# where # is simply a number. I dont know where to go from here. Basically I need it to interpret as index.php?do=clip&id=# ....can anyone help with this?

RewriteRule ^([A-Za-z0-9-]+)?/([0-9]+)$ index.php?do=$1&id=$2 [L]

awesome man that worked! thanks