5k or Dhs 450 is a less amount to buy something worthwhile, IMO. PSP costs over Dhs 600.
Get WD Passport HDD. I got my 160 GB for Dhs 300 something (forgot now). With Dhs 450, you can buy the 250 GB WD Passport HDD. With the remaining money, get Energizer Rechargeable Batteries. The stuff is almost 20-30% cheaper than what we find here.
Ask your friend to buy from Al Ain Plaza, Bur Dubai. Take the escalator and enter the first shop in front of you.
Btw, chicks are hot. Arabs yaar! IMO as beautiful as Indians.