IOS – Presentation software for ipad which works also on windows 7 laptop for remote control

An iPad doesn't offer the same capabilities as a Wacom graphics tablet. At best--Eazel excepted--you'll only be able to control the cursor on the mac or pc. There are many of those types of programs for the iPad in iTunes from the free touch mouse (iPhone only) to iTeleport (iPad, US$25).

Graphics tablets aren't that expensive, especially compared to an iPad. The cheapest Wacom tablet in the USA goes for $200 or so. Ask someone you know to give you one for your birthday or appropriate holiday. If you know enough people, you might even be able to find one for free. I gave away my old Wacom Graphire last year when I bought a new Intuos. Ebay shows used Graphires for a variety of prices; make sure used tablets include the pen and mouse.

I also have made video tutorials using a graphics tablet and Photoshop. I have not settled on which video capture software to use. There are too many for me recommend one.

In answer to the first query - When the students connect they should see both of your displays and then be able to select Display 1 or Display 2 for a closer look at either one. These options appear (or not) depending on the display arrangement setup under Displays in System Preferences.

The bottom line is, ARD is not really suited to this task. There is a piece of software that does exactly what you're after, but it does cost. It's called LANSchool.

The killer LANSchool feature that you're looking for is - 'Show Teacher's Screen'. This overlays your screen onto a selection of student machines. There's a 30 day trial available, I highly recommend you try it out!