am having a dilema, and in need of some advice...
I want to buy a computer so that i can edit my films, and I have been looking into buying a mac. However my budget is a little stretched (i want to buy a mini-dv camera too to input the footage) and so I have been trying to buy a second-hand mac. however, i have heard that mac changes their design every 5 years and after that i wont be able to purchase spare parts, so if anything goes wrong, i'll be in trouble. I was told this at an apple shop though, so I dont know if this is actually the case, or were they just trying to get me to buy new? Also, would a second hand mac (G3,4?) be able to handle the programme, as the guy i spoke to was trying to get me to buy a G5. My second option is to get my friend to build me a PC and install Avid Xpress on it and i can do this for under £500, but I have heard that final cut pro is a lot more widely used and a lot more user friendly. I also need a cheap mini-dv camera that i can use to install footage onto the programme, my last one, a JVC broke as the tape mechanism kept dying, but i've heard this is common with all mini-dv cameras. I'm just looking for a cheap one, I can hire any equipment I need for shoots.
Any ideas for my computer/camera crisis?!

I want to buy a computer so that i can edit my films, and I have been looking into buying a mac. However my budget is a little stretched (i want to buy a mini-dv camera too to input the footage) and so I have been trying to buy a second-hand mac. however, i have heard that mac changes their design every 5 years and after that i wont be able to purchase spare parts, so if anything goes wrong, i'll be in trouble. I was told this at an apple shop though, so I dont know if this is actually the case, or were they just trying to get me to buy new? Also, would a second hand mac (G3,4?) be able to handle the programme, as the guy i spoke to was trying to get me to buy a G5. My second option is to get my friend to build me a PC and install Avid Xpress on it and i can do this for under £500, but I have heard that final cut pro is a lot more widely used and a lot more user friendly. I also need a cheap mini-dv camera that i can use to install footage onto the programme, my last one, a JVC broke as the tape mechanism kept dying, but i've heard this is common with all mini-dv cameras. I'm just looking for a cheap one, I can hire any equipment I need for shoots.
Any ideas for my computer/camera crisis?!