just ordered components and gonna build my 1st pc for 6 years but what i wanna know is when i install windows 7 1st time onto the sata hard drive is it straight forward or or will i have to format the hard drive etc 1st.
I can't remember the exact process, but there should be an option to either "full format" or "quick format." If you're using an HDD you should choose full format on a brand new drive and then you can quick format after that. With an SSD you should never full format.
SSDs are worth the money if you have the money, for sure. Like mcnumpty23 mentions, there's no other hardware upgrade that gives you the same performance upgrade. It doesn't matter how fast your cpu is - if you're opening an application, the speed will be prohibited by a spinning drive.
@rab2011 he would not have to full format regardless. You can do a "quick format" that wipes the data or a "full format" that wipes the data and does chdisk. You want to do a full format on a brand new drive to make sure it doesn't have any bad sectors. SSDs don't need full formated and a full format is bad for an SSD.