I use SMART USB modem-works on my pc and laptop and the officer at smart will instal it for you and wont charge it.
You can pay it cash at any SMART counter. The connection is very good even when its heavy rain. And you can choose the package based on your need For unlimited connection ,the price is vary starts from IDR 50.000/ month, IDR 75.000/month-I use this , 150.0000/month, there's other package also but I forgot the detail. I think Smart has rational price compared to other internet profider. Hope this info helps.
Oh I forgot to tell you , the usb modem sold separately and its cost IDR 900.000 when I bought it last year and its worthed because the monthly payment is not expensive compared to other Internet connection and I can stop using their service anytime I want also but I don't think I will tho hehehe I tried FLASH from Telkomsel before and very very disappointed and the costumer service are so not friendly, yes there's SPEEDY but no thanks. Maaf ya @ Mas Fred , Peace peace