I have not upgraded any laptops other than giving them more RAM but I wanted to know if it was possible to upgrade graphics cards in laptops? And also is it possible to upgrade mine?

This is what I currently have:
http://www.everex.com/products/xt5000t/xt5000t.htm

Everything is as same as I bought it other than I added a 2Gb Memory stick.

Some models have removable cards and some are integrated.

Your model has no mention of upgrading video plus this diagram appears to indicate it is integrated:

http://www.everex.com/support/xt5000...ram_bottom.pdf

Thanks Jephree also how would I go about upgrading my WLAN card?

Not sure you can.

I am looking here:

http://www.everex.com/support/xt5000...0t_support.htm

I will download the manual if I have more time.

I think the only way is the ExpressCard Slot.

I have a question about adding a new hard drive. Does this laptop use Serial ATA150 Interface or what interface does it use? And when buying a OEM drive what do I need to install this hard drive into my laptop?

Chapter 7 of the manual covers adding a hard drive. There are 2 hard drive bays according to one diagram.

http://www.everex.com/support/xt5000...ser_manual.pdf

Your notebook computer offers one 2.5" format, 9.5mm height hard disk.

Thanks for pointing that out for me I have read chapter 7 but I did not see anywhere what type of Interface it used.

I belive its Serial ATA150? But I wanted to be sure.

Hard Disk Drive
• Configured with 1 100GB Hard Disk Drive
• Bus: Serial-ATA (SATA-150)
• Rotation: 5400RPM
• Height: 9.5mm
• Total Available HDD Slots: 2, with RAID 0/1 options (additional settings and software may be required)

http://www.everex.com/support/xt5000...ation-v1.0.pdf

I have read somewhere that SATA drives require drivers to be installed for it before you install the OS to get the most throughput out of it is this true?