Heya,

I would recommend not to go for expensive tools right away (like Adobe Dreamviewer, or Photoshop) right at the start, but instead choose free (or cheap) alternatives. If you spend little more time on them you'll get same results like with professional tools.

If you want good free flash player for your webpage videos I recommend FlowPlayer. For sign up form you can use Aweber (it's cheap, for first month just $1, later on you will be charged $19 and depending how big your list is), or you can autoresponder script on your webserver.

Don't be afraid to start smaller and than expand later!