Firefox Download Pause and Resume

I'm thinking about buying an Acer Aspire One netbook. So, I thought it would be a good idea to take a look at the Linpus Linux Lite operating system it uses before actually buying the Aspire One netbook. Linpus has a 674MB ISO file that can be downloaded from their site. So, I started the download thinking it might take an hour or two. I guess Linpus has a tiny pipe to their server because I saw estimates upwards of 15 hours to download a single CD worth of data. Being conscious of wasting energy, I didn't want to leave my PC on just to download a CD worth of data. So, I pause the download whenever I plan to shutdown my PC and resume it the next time I boot the PC. I don't use the Vista PC I started the download on often. So, it may be a few days before I actually get the entire ISO file downloaded. At this rate the Aspire One netbook might physically arrive before the ISO file does.