I understand that the debate is about overall price.
This should be changed to quality verse value in my opinion. Sure, it may not be possible to buy anything cheaper than Dell, but the cheapest Dells are not going to have any higher quality parts than the ones you purchase seperately. The only reason I would buy Dell is for the company to support you, which I have no need for.
Let's do a real-world Price comparison (all prices in Canadian Dollars):
The cheapest Package Deal Computer on Dell.ca is The Dimension E521 for $499 which includes:
AMD Sempron™ 3400+
512MB Single Channel DDR2 SDRAM at 533MHz - 1DIMM
80GB Serial ATA Hard Drive (7200RPM) w/DataBurst Cache™
48X CD-RW/ DVD Combo Drive
17" Conventional CRT monitor
Integrated Sound, Video and LAN
Dell USB Keyboard/Dell Optical USB Mouse
Not a bad deal.
Let's head on over to my favourite Canadian Computer Retailer, NCIX!(
http://www.ncix.com)
Let's Stick with the AMD theme, since I'm an AMD guy at heart anyways.
ASUS M2NPV-VM (Integrated Video/sound/lan) - 99.98
Thermaltake TR2 W0070 430W Power Supply - 29.98 (don't let the price fool you, this is actually a nice PS, I've used it many times before)
AMD Athlon 64 3500+ AM2 Orleans 2.2GHZ 512KB L2 Cache - 109.99
Crucial Rendition 512MB PC2-5300 DDR2 - 66.98 (personally I would buy more)
Coolermaster Elite RC-330 (comes with a 120mm fan) - 41.98 (pretty stylin case and coolermaster is a reputable company)
LG GSA-H10N DVD+RW 16X8X16 DVD-RW Writer 2MB Black - 35.98 (black to match the case)
Seagate Barracuda 250GB 7200.10 8MB Sata2 - 85.98
I-ROCKS IR-7900 Optical Mouse 800DPI Black Silver USB - 4.99
Aopen KB-858B Black 107KEY Keyboard USB - 11.70
With a grand total of: $487.56
If you want to include a monitor,
Samsung SyncMaster 793DF II Dynaflat 17IN SILVER-BLACK - 135.70
$623.26
Take into consideration, the AM2 Chip is bounds ahead in technology compared to the old and dated sempron Chip. Also, Crucial RAM is known for it's quality and compatability. Also notice the size of harddrive compared to that of the Dell. Knock a good 40$ off the price to get an 80gig.
Personally, I don't like the integrated graphics units, but if you're not playing games and strictly using this beast as a recording machine, by all means, you don't need it.
In conclusion, I think it's safe to say that when buying through Dell, they basically will give you a free monitor AND the support of the company. For what those are worth, it's up to you, but to me, I would buy the custom computer built above.
Hope this clears some things up.