Hello I've been looking into getting a new computer. I previously posted "which Mac is better?" Now I see an iMac is on sale at Best buy and am having trouble deciding between the two. IMac: Intel® Core i5 processor Features a 6MB L3 cache and 2.7GHz processor speed. Features smart 4-way processing performance with a speed boost. Intel® Turbo Boost Technology Automatically speeds up your processor when your PC needs extra performance. 4GB DDR3 memory For multitasking power, expandable to 16GB. Multiformat DVD±RW/CD-RW drive with double-layer support Records up to 8.5GB of data or 4 hours of video using compatible DVD+R DL or DVD-R DL media. 21.5" LED-backlit TFT widescreen display With 1920 x 1080 resolution for intense images. 1TB hard drive (7200 rpm) AMD Radeon HD 6770M graphics Feature 512MB of GDDR5 video memory for lush images. Dual-display and video mirroring capability. FireWire 800 port and 4 high-speed USB 2.0 ports Provide quick and simple connection for digital peripherals. Built-in Bluetooth 2.1 + EDR wireless interface. Built-in wireless LAN card (802.11n) Built-in 10/100/1000Base-T Gigabit Ethernet LAN with RJ-45 connector. Mac OS X Lion preinstalled Provides a stable computing platform $1407 Mac Pro: The Mac Pro "Quad Core" 2.66 (Early 2009/Nehalem) is powered by one 2.66 GHz Quad Core 45-nm Xeon W3520 (Nehalem) processor with a dedicated 256k of level 2 cache for each core and 8 MB of "fully shared" level 3 cache. By default, it was configured with 3 GB of 1066 MHz DDR3 ECC SDRAM, a 640 GB (7200 RPM, 16 MB cache) 3Gb/s Serial ATA hard drive, an 18X dual-layer "SuperDrive" and an NVIDIA GeForce GT 120 with 512 MB of GDDR3 memory. Expansion includes two external 5.25" "optical" bays (one free by default), four internal 3.5" "cable-free, direct attach" hard drive bays (three free by default), and four PCIe 2.0 slots (one free PCIe 2.0 x16 slot and two free PCIe 2.0 x4 slots with the default single graphics card installed). Ports include five USB 2.0 ports, four Firewire "800" ports, dual Gigabit Ethernet, and both a Mini DisplayPort and a dual-link DVI port, among others. Bluetooth 2.1+EDR is standard, AirPort Extreme (802.11g/n) is optional. The 64-bit "Nehalem" architecture is substantially faster and supports "Hyper-Threading" -- which "allows two threads to run simultaneously on each core" (so MacOS X recognizes eight "virtual cores" on this model) -- and "Turbo Boost" It also replaces the frontside bus with a new "QuickPath Interconnect" (QPI) system described as a "bidrectional, point-to-point connection" that provides "quick access to the disk, I/O, and other Mac Pro subsystems". Other changes include four PCIe 2.0 slots (instead of two PCIe and two PCIe 2.0 slots), four Firewire "800" ports $1379 I plan to run Photoshop CS5 and Final Cut Studio 3. Any thoughts? I apologize for the extremely long post.