What's been her favourite toy so far?
The suction-style toys are brilliant (though a little pricey). They're a completely different experience to traditional vibrators and for a lot of people they can be a real game changer. 🙂 Though I should add that as every body is different people can have very different experiences from the same toy so there are no guarantees, but Mrs Chimp absolutely loves her Sona and the Womanizer Premium. 👍
Womanizer Premium (also available in red and white) https://www.lovehoney.co.uk/product.cfm?p=40149
As for wands we're similar to AmyA. Lots of people think the mains-powered Classic is fantastic but we're in the minority that find it a bit industrial (too big, too hot, too heavy), though I think if you did like it you could use it during even with the lead (deeper N G ing on position). The Mantric wand is our favourite at the moment. It's light, powerful, rumbly, has a good range of modes and intensities, and can easily be used during. All wands are more broad stimulation than precision so it depends on what her preference is.
Classic Wand (also available in black and metallic)
https://www.lovehoney.co.uk/product.cfm?p=20464 Mantric Wand https://www.lovehoney.co.uk/product.cfm?p=37966
For precision toys I'd say something like a really powerful bullet upgrade. The forum favourites are the Desire Bullet (smooth but firm silicone, good battery run-time, lots of modes and patterns), the We-Vibe Tango (plastic but super rumbly, very good battery run-time, super intense), or the Matruc bullet (smooth and firm silicone, kicks ass, more affordable, shorter battery run-time).
Desire Bullet https://www.lovehoney.co.uk/product.cfm?p=36366
We-Vibe Tango https://www.lovehoney.co.uk/product.cfm?p=30320
And a few curve balls -
Mantric Pebble (like the bullet but a different shape so you can have flip between precision and broad stimulation) https://www.lovehoney.co.uk/product.cfm?p=39047
Red Hot Flickering Tongue (an unusual but very intense little thing) https://www.lovehoney.co.uk/product.cfm?p=37758
Hope this sparks your imagination. 🙂