WEll Here I am once again, Mr. Fuggin Know It all... But I'll tell you what, over the last 3 years I have had 5 Dells, all of them were refurbs, all come with the full factory warranty, and all have performed flawlessly.
Personally, AVOID SONY COMPUTERS LIKE THE PLAGUE!!!! This is from personal experiance, Desktops kinda suck and everything is too damn proprietary... If they hit a bump...they are a mother F'r to rebuild... Their laptops are cute but totally helpless, again because of the amount of Proprietary (Cutsie Add ons) Software and hardware.
If you really want a sweet a sweet Video editing machine Get A MAC G-4 or G-5. They are simply better, Faster, more stable... This is a professional opinion, if you want to get semi serious get a Mac. They come with just about everything you would need right outta the Box. Downside? They are a little pricey. But they rock, seriously...
OK For what you want to do, some video editing, Excel, etc... in the PC world? I still recommend A DELL REFURB, or maybe build your own.
Dell Refurb Or "Outlet" Example...
<span style='color:green'>SYSTEM SPECIFICATION
Dimension 8400 (System Identifier DDEGG991)
Dimension 8400 Desktop: Pentium 4 Processor 530 with HT Technology (3.00GHz, 800 FSB, 1MB)
Microsoft Windows XP Professional
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System Price $1,144.00
Promotion Discount ($300.00)
Discounted Price $844.00
Dell recommends Microsoft® Windows® XP Professional
Operating System: Microsoft Windows XP Professional
Memory: 512 MB DDR2 400MHz NON-ECC SDRAM (2 DIMM)
Floppy Drive: 1.44 MB Floppy Disk Drive
Hard Disk Drive: 160 GB EIDE SATA Hard Drive (7200 RPM)
Video: 128MB PCI Express ATI Radeon X300 SE
Modem: 56Kbps Data/Fax Modem
DVD Drive: 16X DVD ROM Drive
8X DVD + RW Drive</span>
Another.................
<span style='color:green'>SYSTEM SPECIFICATION
Dimension XPS Gaming Series (System Identifier 0971R6M6)
Dimension XPS Gaming Series: Pentium 4 Processor at 3.2GHz with 800MHz front side bus
Microsoft Windows XP Professional
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System Price $2,249.00
Promotion Discount ($300.00)
Discounted Price $1,949.00
Dell recommends Microsoft® Windows® XP Professional
Operating System: Microsoft Windows XP Professional
Microsoft Plus! for Windows XP
Memory: 2 GB DDR SDRAM 400MHz (4 DIMMs)
Floppy Drive: 1.44 MB Floppy Disk Drive
Hard Disk Drive: 250 GB EIDE SATA Hard Drive (7200 RPM)
Video: 256MB DDR ATI RADEON 9800 XT
Modem: V.92 Data/Fax/Voice WinModem
Sound Card: Sound Blaster Audigy?2 (D) Card w/Dolby 5.1, and IEEE 1394 capability
DVD Drive: 16X DVD ROM Drive
8X DVD + RW Drive</span>
This second one is somethign I wouldn't hesitate to snap up... It's cutting edge not Bleeding edge... Good Value for your Money. Then get yourself a new 20" LCD and your good to go... they are getting much cheaper.
Also a couple good websites to check...
-PriceWatch, Helps you find the lowest prices on damn near anything on the web
-Dell.com Outlet. Like I said they all come with full warranties and are backed by Dell just like they were new.