hello. i am the proud owner of an 8 year old g4 that i use everyday for everything but what i bought my macbook pro for. it's never really let me down, i've added a few things to it to keep it working quickly, and i can't say enough how glad i am to be a machead. as for my tower, it has an upgraded processor that went from the factory 400mhz to a sonnet 1.4ghx, 1gb of ram, multiple hard drives for my music needs, and a m-audio delta i/o card. i'd really like to keep it as my main squeeze as it is adorned with favorite stickers, but i think i've hit it's limit program wise as all the new stuff i bought can't be handled on it. since reading through these boards i've seen some very interesting people do some great things upgrade wise and was wondering if i should shove some g5 guts into it? or just break down and buy one with a dual powerpc g5 processor as they are somewhat dirt cheap for ones with my needs? any thoughts?