[him61]

upgrade path to the 6800go is mod free and all you will need is the card, some screwdrivers and possibly a later revision bios.

upgrading to either of the other cards as i said is possible but you will need:

1. a 9cell primary battery
2. a 130w external power adapter(xps2 stock adapter)
3. xps2 northbridge heatsink(most newer 9300's ship with the correct type heatsink, but some older versions it seems use one which is a different shape, and will thus get in the way of the faster more power hungry gpu's secondary heat pipe)
4. the gpu
5. a hacked xps2 bios(since no 9300 bios will recognise the 6800u or the 7800)

http://www.dellcommunity.com/support...sage.id=142442

Now I got my info straight. You'll have to get by with a 6800Go to stay away from extra costs. You'll definately need to flash the BIOS to a different version, because I know that the one it ships with only allows a Mobility Radeon x300 card other than the integrated graphics. Now, I'd say that your best bet would be the sites that are listed in that thread I linked above, like
http://www.upgrade.co.uk/
or
http://www.impactcomputers.com/

Good Luck!

http://www.impactcomputers.com/w5373.html#

That would be your best bet, although it is pretty expensive. You should note that laptop parts cost way more than desktop parts. BTW, the exchange rate would make it £171.50

BTW, NV41 would be the Go 6800 or Go 6800 Ultra.