You can fit the iOptron
GOTOnova equatorial kit.
It is a USB based system that works ok.
Upside:
Has: a 130,000 object database of objects; 8 line LCD display; Real Time Clock (RTC) with battery backup; inbuilt LED light on handset; GPS (optional). Has ASCOM drivers that kinda work.
Downside:
Currently has no autoguider interface. Ioptron are reportedly working on it but they have been saying this for quite awhile; System is loud when fast slewing ... aka like the older LDX55; iOptron have a poor customer service record (especially to those outside USA). Has ASCOM driver that still needs work.
Still it's not a bad unit. You can buy it cheaper from on-line (
Hioptic China) than agents. They were selling for around $600 Aust but with the Aust $ the way it is...who knows now!
I'd recommend it for a beginner or someone who doesn't want a large mount & system. I have an RS232 version of this system and have some reasonable astro pics (unguided)...but i'd really love an autoguider adaptor. Sigh!
Anyway just some food for thought.
More reading
here.
Edit:
Meant to say you can buy other drive systems from
Hioptic as well.
Also wanted to ask ...do you already have an EQ5 mount? If you don't then the
HEQ5 would probably be a better choice.