Like haveacigar suggested an ethernet crossover cable should be suffice. You haven’t said what OS you are using on the old and new pc but if they both are variations of Windows you should be able to easily transfer you files and settings. You can use the built in Files and Settings Transfer Wizard in Windows to transfer your files and settings (excluding installed Programs, Which must be installed from original cd/dvd’s or downloaded. Install programs before transferring your files and settings First!). Here is a Link that will help your migration of files and settings pretty painless.
Here is a list of transfer settings for third-party programs:
Programs Whose Settings Are Migrated
Program Name Version Program Vendor
Adobe Acrobat Reader 4 4 Adobe
Adobe Acrobat Reader 5 5 Adobe
AOL Instant Massenger (AIM) 4.3.2 America Online
Command Prompt 5.1
CuteFTP 4.2.2 GlobalScape, Inc
Eudora Pro 5.1 Qualcomm
FrontPage 4.02 Microsoft
GetRight 4.3 GetRight Software
GoZilla 3.92 Go!Zilla, Radiate, Inc
ICQ 2000b 4.60 b #3278 Mirabilis
Lotus Smart Suite 9.6 Lotus
Money 2001 9 Microsoft
MSN Explorer 1 Microsoft
MSN Messenger 3.5 Microsoft
MusicMatch Jukebox 6.00.0270 IDG
NetMeeting 3.01 SP2 Microsoft
Odigo 3 Odigo, Inc.
Photoshop 6.0 6.01 Adobe
Prodigy Internet 5 Prodigy Services
Publisher 2000 Microsoft
Quicken 2001 Suite 1 Intuit
Quicken Home and Business 2001 2001 Intuit
QuickTime 4.1.2 Apple Computers
Real Jukebox 2 Basic 1.0.2.340 RealNetworks
Real Player 8 Basic 6.0.9.450 RealNetworks
Roger Wilco Mk1c Mod1
Sidewinder Game Voice 1.1 Microsoft
Sonique 1.9 Sonique
Winamp v2.73 2.73 Nullsoft
Windows Media Player 8 Microsoft
Windows Movie Maker 1.1 Microsoft
Winzip 8 Nico Mac Computing
Word Perfect Office Office 2002 Corel
Works 2001 6 Microsoft
WS_FTP LE 6.6 IPSwitch
Yahoo! Messenger 3.5 Yahoo!
Zone None Microsoft