a few tips from a PSP user... things to consider when buying- do you intend to use for ori games only? if no, you need to consider the firmware and a HUGE memory stick (add cost!) i got mine with firmware 2.0, downgrade to 1.0 then up to 1.5, but I need an ori disc to load homebrew.. i then bought a 2GB memory stick to store games, painful but cool
theres a new downgrader now..for 2.5/2.6. Downgrades them to 1.5...though only 93% success rate -rolleyes
I just played my mates new DS lite and I was impressed, lots of fun. But psp appeals to me more due to the game selections.