As mentioned above, HRO is a good store. AES is also good -
http://www.aesham.com/ & R&L -
http://www.randl.com/shop/catalog/
I will also mention Universal Radio. If nothing else, their website is an old design but very easy to find and review items.
http://www.universal-radio.com/
I also would suggest a dual band radio. The FT-7900 is a nice radio. I have one for the wife's car. For myself, I have an FT-8900 for home/portable use. It is quad band and but I support a 6 meter FM event each year so it is necessary. The FT-8800 is the dual band version. What makes this FT-8800 (or the FT-8900) is you can monitor two frequencies at once. For example, you may want to be on simplex for your chaser friends while listening to local/regional Skywarn activities on a repeater.
A second advantage many users never realize us the ability to cross band repeat. This allows you to use a less powerful HT and connect to the mobile radio. An as example, for my 6 meter FM event, we do cross band repeat from a 6 meter simplex frequency to a 70 cm simplex frequency. There are three of us running net control for the event and we roam around the site with our HT on the lowest power setting on 70 CM and connect with the other portable and mobile 6 meter stations. You could also do something similar when you step away from the vehicle to watch the sky or are in a restaurant eating a meal. You have the advantage of the more powerful mobile radio with a better antenna but are not tied to the radio.
You can do something similar with a repeater. I can hear the repeater on my HT from my chair but am scratchy transmitting into the repeater. In this case, I listen to the repeater output on my HT but transmit on a 70 CM simplex frequency. I then have the FT-8900 in the shack at home set up to listen to the 70 cm simplex cross band repeat to the 2 meter repeater INPUT frequency simplex). The repeater OUTPUT is only monitored on the HT so the FT-8900 doesn't cross band repeat it back. I've used similar when in the shopping mall during the weekly RACES/ARES nets. This concept would be great if you were assigned to a shelter and wanted to be inside with your HT and operations where on a repeater.
For mobile though I am using a Kenwood D-710A (and external GPS). There is a more recent G version with the GPS built in. It is a solid radio with capabilities of the Yaesu FT-8800 but the added capability of APRS being built in. You can see other hams and objects with APRS and they can see you. It is a feature I find very useful.
-------
As for an HT, I have ICOM, Kenwood, & Yaesu. However I have also picked up several of the lower priced Chinese radios. The Baofung models and Wouxon models are also good too. An inexpensive Baofung can be had for $30-40 at Amazon on sale. While they are not as good as the big three, if you drop it or lose it you're feel less bad about it.
------
For the mobile, a good 5/8 wave is best for distance. Avoid mag mounts if you can. I keep a very short antenna on for day to day use but a 5/8 wave for traveling or events. I went "all in" and drilled holes in my new Honda CR-V for NMO mounts.
Also get a longer antenna for the HT but keep the stock one around too.
-----
Last, I suggest getting programming cables for all of your radios. It makes life so much easier when using a PC to program them than by hand.
