Dell Desktop Inspiron 545

which should I choose this system of 32-bit or 64?

This PC Dell offers the option to choose Vista 32-bit or 64-bit Vista, which should I choose im not a machine is better or specd configured to use, please help me http://www1.euro.dell.com/content/products/productdetails.aspx/desktop-inspiron-545?c=uk&l=en&s = dhs & cs = ukdhs1 ~ & Oid = us ~ en ~ 20,211 ~ june_desktop-inspiron-545_d064502 ~ ~

http://windowshelp.microsoft.com/Windows/en-GB/help/41531554-d5ef-4f2c-8fb9-149bdc5c8a701033.mspx Take a look at it.

Genuine Dell XW605 250w Small Form Factor (SFF) Power Supply, For the Dell Inspiron 530s, Inspiron 531s, Vostro 200(Slim), 200s, 220s, and Studio 540s Small Form Factor (SFF) Systems, Identical Dell Part Numbers: XW604, XW784, XW783, YX301, YX299, YX303, 6423C, K423C N038C, H856C, YX302, Compatible Model Numbers: DPS-250AB-28 B, 04G185021200DE, PS-5251-5, TFX0250D5W $28.05 Replace your faulty Dell power supply quickly with one of our Genuine Dell replacement units! Dell 250w Power Supply for select Inspiron, Vostro, and Studio SFF or Slimline systems. Connectors: 1x 24-Pin ATX Connector 3x SATA Power Connectors 1x Floppy Power Connector 1x 4-Pin ATX Power Connector…

Genuine Dell XW600 300 Watt Power Supply Power Brick PSU, For Dell Vostro 200, 201, 400, 220, Inspiron 530, 531,541, 518, 519, 537, 545, 546, 540, 560, 570, & 580 Mini Tower (MT) Systems, Compatible Dell Part Numbers: 9V75C, C411H, CD4GP, D382H, DVWX8, FFR0Y, H056N, H057N, HT996, J036N, K932C, N183N, N184N, N189N, N383F, N385F, P981D, PKRP9, R215C, R850G, R851G, RJDR3, XW596, XW597, XW598, XW599, XW600, XW601, Y359G, YX309, YX445, YX446, YX448, YX452, Manufacturers: Bestec, Liteon, Hipro, and Delta, Similar Model Number: DPS-300AB-24 G, DPS-300AB-24 B, HP-P3017F3, D300R002L, HP-P3017F3 LF, PS-5301-08, DPS-300AB-47, PS-6301-6, HP-P3017F3 3LF, DPS-300AB-36 B, ATX0300D5WB, ATX0300D5WB Rev X3, HP-P3017F3 LF, HP-P3017F3P, DPS-300A B-26 A, 04G185015510DE, PC6037, PS-6301-6, DOS-300AB-36B, PS6301-02 $33.99 Genuine DELL 300 Watt Power Supply. Features: 300 Watt Max Output, 100-127V or 200-240V Input, Dimensions: 5 7/8 W x 3 3/8 H x 5.5 D – Inches, For Dell Vostro 200 / 201 / 400 / 220 Mini Towers (not Slim towers!!), For Dell Inspiron 530 / 531 / 541 / 518 / 519 / 537 / 545 / 546 / 540 / 560 / 570 / 580 Mini Towers (not Slim towers!!), Connectors: P1 – 24-pin ATX Motherboard Power, P2 – 4-pin P4 m…

Alienware AX51-0066BK Desktop $978.98 The Alienware AX51-0066BK Desktop PC features its second generation Intel Core i5-2320 3.0GHz Dual-core processor along with its 8GB of DDR3 memory. This desktop PC allows you to store more files with its 1TB hard drive. Absolutely play the latest game titles in max detail settings with its NVIDIA GeForce GT 545 GPU. Furthermore, it comes with a nice Blu-ray ROM/DVDRW optical drive for playback an…