Same price, what system to get here (DDR or RAMBUS)?

[elekid]

compare the 2 below, what do u think is the best value, got my geforce ti 4400 preordered

---------------NEWEGG------------------------------------------[RAMBUS System]
44.00 BLACK EVERCASE E4252BEF5
9.00 SONY 1.44MB 3.5 INCH INTERNAL FDD DRIVE (NEWEGG)
101.00 MAXTOR 60GB 7200RPM (NEWEGG)
30.00 Lite On 52x Cd Rom - Model LTN-526 (NEWEGG)
10.00 D-Link 10/100 Mb PCI Ethernet (NEWEGG)
5.00 AOC 80X80X25mm FAN (NEWEGG)
199.00=36.00=235.00
---------------------------------------------GOOGLEGEAR-----------------------
140.00 Intel Pentium4 1.6A GHz 512K Socket 478 (GOOGLEGEAR)
140.00+11.00==202.00
--------------------------------------------------MWAVE-----------------------------
144.00 ABIT TH7II INTEL 850 CHIPSET (Audio, RAMBUS)
164.00 KINGSTON KVR800X16-16/256 RAMBUS 256MB x2
312.00+12=324.00
------------------------------------------------TOTAL w/ SHIPPING-------------
235.00
151.00
324.00

--------
709.00 TOTAL!
----

------------------------------------------------[DDR System]-----------
140.00 Intel Pentium4 1.6A GHz 512K Socket 478 (NEWEGG)
44.00 BLACK EVERCASE E4252BEF5 (NEWEGG)
9.00 SONY 1.44MB 3.5 INCH INTERNAL FDD DRIVE (NEWEGG)
101.00 MAXTOR 60GB 7200RPM (NEWEGG)
30.00 Lite On 52x Cd Rom - Model LTN-526 (NEWEGG)
10.00 D-Link 10/100 Mb PCI Ethernet (NEWEGG)
16.00 Hercules GameSurround Muse XL (NEWEGG)
5.00 AOC 80X80X25mm FAN (NEWEGG)
----
158.00 Crucial 512 DDR 2100 RAM (CRUCIAL)
----
118.00 Asus P4B266-C i845D P4 (DDR) (Northwood) (GOOGLEGEAR)
------------------------------------------------------------------------------------
Newegg= 355.00+40.00=395.00
Crucial= 158.00+0.00= 158.00
Google gear= 118.00+12.00=130.00
----------------------------------Total /w Shipping-------------
683.00