Inspiron 9300 questions??

[JeffO]

I've decided to purchase a Dell Inspiron 9300 and have a couple of questions, as I am not a "computer guy". First off I intend to use it soley for poker. I need four tables with no overlap. I use pokertacker and have a rather large database, as well as playerview.

The basic Inspiron 9300 comes with the following which can be upgraded.

A 17" XGA dispay which can be upgraded to the UXGA display. Worth it? whats the differance?

256 MD memory. Can be upgraded to 512, 1GB or 2 GB. Do I need to upgrade?

Hard drive 40GB standard. Can upgrade to 60, 80, or 100GB. Recommendations?

Sound card. Do I need one?

Video card. 64MB standard, can upgrade to 128 or 256MB.

Keep in mind when making your recomendations that my only real interest is multitabling. Thanks in advance for any help.