Information overload...
13" NEW 2.9 laptop:Smallest, but about 2/3 the power of the 15" laptop. New. 3x faster than current laptop. Same as work computer.
$1600 -
http://store.apple.com/us/configure/MD102LL/A$300 on top of that cost to get eSATA, and dual drives (data doubler, Apple 128gb SSD, reuse 500gb Momentus XT).
-$100 discount
=$1800
21.5" 2.7 NEW iMac:Still very fast, cheaper than laptop. 4x faster than current laptop. 1.2x faster than work computer.
$1700 -
http://store.apple.com/us/configure/MC812LL/A$500 on top of that cost to get eSATA, dual drives (keep 1tb HDD, OWC 128gb SSD), and 8GB RAM.
-$100 discount
=$2100
15" refurbished 2.5 laptop:
Best performance in price range. 4.5x faster than current laptop. 1.5x faster than work computer.
$1800 -
http://store.apple.com/us/product/G0NM5LL/A$500 on top of that cost to get eSATA, dual drives (data doubler, OWC 128gb SSD, Apple 750gb HDD), and 8GB RAM.
=$2300
15" NEW 2.3 laptop:
Can configure some things, similar to refurbished. 4.1x faster than current laptop. 1.3x faster than work computer.
$1900 -
http://store.apple.com/us/configure/MD103LL/A$500 on top of that cost to get eSATA, and dual drives (data doubler, OWC 128gb SSD, reuse 500gb Momentus XT), and 8gb RAM.
-$100 discount
=$2300
MacPro refurbished tower:
Easiest to self-service. Most dated technology. 3x faster than current laptop. Same as work computer.
$2100 -
http://store.apple.com/us/product/FC560LL/A$400 on top of that cost to get eSATA, dual drives (256gb SSD), and 8GB RAM.
=$2500 (+$300 for same performance as iMac)