Dbl Buttons

Need advise on this new computer i just purchased?
im going to remove microsoft works and install openoffice but i need help on which antivirus i should install i have nod32 smart security but its for xp will it work or should i get a new antivirus. ALSO a strong firewall OR should i just install linux and which one
computer specs
* Inspiron Desktop 530 Mini-tower: Intel Core 2 Quad Processor Q6600 (8MB L2 cache,2.4GHz,1066FSB)
* Genuine Windows Vista Home Premium
Operating System
Genuine Windows Vista Home Premium
Memory
3 GB DDR2 NON-ECC SDRAM 667MHz (4 DIMMs)
Hard Disk Drive
320 GB SATA Hard Drive (7200 RPM)
320 GB SATA Hard Drive (7200 RPM) 2nd Drive
Modem
V.92/56K PCI DataFax Modem
Base
Inspiron Desktop 530 Mini-tower: Intel Core 2 Quad Processor Q6600 (8MB L2 cache,2.4GHz,1066FSB)
Media Bay
16X DVD +/- RW w/dbl layer write
Software
Microsoft Works 9.0
Hardware
Dell 19 in 1 Media Card Reader
USB Keyboard
Dell Optical USB 2-button Mouse
With the specs you are describing, I wouldn’t worry about uninstalling MS Works. Just install OpenOffice and let it overwrite the file associations. That way if you run into a project that might be easier to do in Works, it is still there.
As far as the anti-virus goes, unless it says specifically that it is compatible with vista, most features will probably work, but I can almost guarantee you that some features will not. I’d just go ahead and by a new one. As far as a firewall goes, I don’t really use one. The one included with vista should be sufficient if you make sure the configuration is setup right.
