$150
Wow, That Won't Really Buy Much Even In PC Terms. Hell, If Your Planning On Using iMovie, That Itself Will Cost About $80.
Alright, That Aside, I Would Just Like To Clear Something Up; I Don't Know WHY Someone Commented To Stay Away From PowerPC Macs, Because Many REAL Television And Film Companies Still Use Them - Granted If We Had Unlimited Budgets We Would All Migrate Over To The Latest Mac Pro's, But In This REAL World With REAL Production Companies Folding All The Time Due To Our Industry Shrinking The Way It Is, A Lot Of Us Still Rely On Our G5 Farms And Stuff - They Will Suit Your Budget Perfectly, And If I May Add, They Are Far From Dead
Alright. If You Are VERY Lucky, You May Be Able To Pick Up An Old First Gen PowerMac G5 For About This Price - It Should Include iMovie Too - Bonus!, So Make Sure It Comes With All The Installation Disks And Bumf.
That Said, A PowerMac G4 Will Probably Meet The Price You Set More Easily. I Still Have An Old G4 Dual 800 And It Runs Leopard Fantastically ( Although It Isn't Officially Supposed To Do That....).
These Machines WILL Do Everything You Want Them To Do For Basic Video Editing, They Are Great, And You Will Be Pleasantly Surprised What They Can Still Do - But Don't Not Expect Them To Blow Your Skirt Up.
Also, Try Not Go Lower Than An 800 Mhz G4 Machine.
On A Final Note Video Editing Is Very Demanding So You Need To Spec It Out With As Much Memory As It Will Take And Fast Hard Drive Help Too.
But This Can Always Be Done At A Later Stage - The G4's Were The Easiest Macs To Upgrade.
Barney