first, i know this has been asked already, but not in the way im wanting to know. i just purchased my first mac, its a used 2009 15.4 with 2.53GHz and upgraded 8gb ram upgrade, and its awesome, so glad i made the purchase! now my question is this... the prior owner put in a new 5400rpm seagate hdd when i bought it, and i want something a little faster. however im not a power user and i dont really do any cpu intensive stuff yet. i do plan on putting windows on here sometime in the future. im looking at either the seagate momentus xt 750 gb or either samsung 830 250gb or crucial m4 250gb, now between the sad and hhd, what are gonna be the major differences??? on one hand im sure ill never need 750gb of space, but i like having in case i keep this computer a few years nd end up putting HD movies and photos and what not, on the other hand i like having the most up to date kind of stuff, ive seen some videos on youtube of the seagate booting faster than ssd and vice versa, so im hoping someone who has both or one or any first hand experience with either can give me some insight. and i think from what i have read a new ssd with sata 3 in overkill for my mbp, but i can swap in the future to new mbp. thanks for looking and sorry if this is in the wrong spot, im just going nuts trying to decide, i dont want to get one and then regret and wish i got the other.