:-)
Hi how ru ?

places to buy IT staff like PDAs or printers and it must be first reliable

either your go to down town and u will find mall full of Computer shops but they are not the reliable it down of Sofitiel hotel

but i prefer you go and check Carrefoure ,LuLu offers , Jareer Shop u can get better quality but higher prices

for Dell PDA's try to check Arabic Computers they r partner here in doha for dell and service provider they have show room at Midmac Flyover on Slawa Road near Merch

for internet access for PDA it is better to get PDA with wireless as alot of hotspots ( wireless ) will be in Doha specialy in public pls if your want more information let me know