I just ordered a 798ci si from academy sports online. I am in the process of installing everything now. The unit was $749.99 with no tax and free shipping. It doesn't say HD like the new ones but there is no difference between the 2 except for a different port on the back of the unit. The power cord is 6 feet long so I bought some extra wire to give me enough length t0 reach the battery. Walmart has 4gig sd cards for $10. I probably have about $770.00 in the whole unit. The only other thing you might get is the sd card navionics. It would be nice to have for bigger lakes like kentucky lake or guntersvile but the lakes around here I pretty familiar with. The unit on academy sports was the cheapest I had found anywhere and I looked for a while. One of the other bass forums has a board dedicated to selling electronics and most people wanted at least 650 or more for the same unit used. I felt for an extra hundred it wasn't a bad deal to get one brand new and with a warranty.