Sager NP5793 questions about hardware and plog in

hi everyone
i decided to buy a Sager NP5793 at last but still some questions still left for me
1 what is the VGA cad of this laptop (in most reviews its 8800m gtx but in the shopping sites its 9800m gts) and is this a notice able difference between this two ?
2 in this shopping site i fund several plugins and upgrades available for this notebook and i have a few questions about them.
2-1 i need to upgrade the CPU monitor and sound card (choose the Creative Labs Sound Blaster X-Fi 7.1 Xtreme Audio) does any one thinks this would be an unwise choose ?
2-2 does the car battery recharger damage the notebooks battery ? and is it wise to choose as a plugin ?
2-3 and also im thinking about the back pack you think its better to buy it from here or buy a back pack after buying the notebook ? and if i choose the back pack will i resive the ordinary bag also or i would not?
2-4 what about the tv tuner ? do you thing any of the really worth that much? which one do you thing it is the most cost effective one at all?
2-5 is there any pugin you would advice me to choose?
thanx

 

The VGA card in this laptop is the 9800M GTS. This is a new revision of this model, so the reviews that you're looking at all have the older model that included the 8800M GTX.

 

1- the 8800 GTx is faster than the 9800m gts....though the 9800 is newer...the difference between the two cards is somewhat noticeable, depending on game and stuff.
2- A=Up to you....though i would go not with the higher res screen unless you plan on viewing alot of blueray and or game alot. (lower res screen would be better because you can easily play games at native res with the9800)
B= it wont 'damage' the battery...but then again, batteries do wear out eventually....but i would get the car adapter if i were traveling alot with the notebok
C= you can get a better backpack from a local store
D= No clue....ive never used a tv tuner
E=yea, get the better network card the 5300 instead of the 5100....better range!

 

Thank you very much
I didnt really understand what you told about the monitor.
And i will not buy the car charger.
Also would not buy the TV tuner now.
But i still have a question about back pack will i revive the ordinary office bag also if i order the back pack or the ordinary bag would be exchanged with the back pack.