could someone help with reinstall leopard options please

I have a macbook and have installed leopard without any issues.

However I would quite like to take this opportunity to have a clear out and as I installed as an automatic upgrade I missed that opportunity. What option do I have as a reinstall?

I dont have any discs for my programs, they either came installed on the macbook or our just downloadable programs I can redo (apart from MS office -yuch which I have a disc for)

So basically all I think Iam missing is ilife07 (iphoto etc) - is there any way to download these again for free?

This was the first time I have installed an OS so any help will be appreciated.

Thanks

 

Am pretty sure I didnt get any I am going to check the box now.

 

I found install disc 1 and 2

Is there a way I can delete on the computer and then reinstall just leopard...then use these discs to just add ilife? Is ilife even on there? Will I be missing out on anything else? As I say I have the Office discs...and I can just back up my itunes and general docs I need to keep.

Is there a benefit to doing what I want to do?

OK I found an 'install bundled software' on my macbook tiger installation disc....so can I do the following.

1. Back up my itunes/iphoto/imovie files to cd/dvds
2. Back up any folders/word docs etc I need to keep.
3. Put in my leopard disc again and go for erase and install
4. Put in my previous bundled macbook disc and select 'install bundled software'
5. Load my backedup files back into their respective programmes.

?????????

 

Can anyone help with this? I dont want to do anything stupid so need some guidance.