DV 2601 TU HP Laptop

I had bought DV 2601 TU HP Laptop in december 2007 for Rs 41,000 and it has given very good performance so far.I Also got a TV card worth 6600 free with the laptop. Everything is good about laptop but the OS , Vista is very slow. and 1 RAM gien in laptop is not enough to support it.

Specifications:
Intel core duo processor 1.46 Hz /Intel 945 GM express chipset
1 GB DDR2 / 160 GB HDD
8 X double layer dvd writer/
14.1" WXGA TFT with BrightView Screen Technology
Intel graphics Media accelerator/ DVMT 3.0- 128 MB
Altec Lansing stereo speakers ?
56 k MODEM / Integrated wireless LAN 802.11 a/b/g . bluetooth LIOn Battery , touchpad / 2 USB 2.0 / web case / finger print reader VISTA premium