Thanks to the advice you guys gave me, i finally decided on buying the iPod first, then saving for the DSi.
I had about £200 in my bank, and the iPod was £107. So I only have £93 left, but I will definatly be able to save up £57 for the DSi by April 4th :)

My iPod should arrive any day from tomorow to saturday.

The only problem I have now is there are a lot of great games being launched for the Wii such as House of the dead: Overkill, Madworld etc. and I'm gonna have to balance my DSi savings and my game savings well...

;) I love technology, but it can leave annoying desisions sometimes :(